Intercoolers / Radiators and Cooling

We stock a great selection of cooling products for your Ford Focus RS, from great brands such as Airtec, COBB tuning, Direnza, Garrett, Mishimoto, Pro Alloy and more.

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AIRTEC Motorsport Rear Diffuser Extension for Focus RS MK3

Airtec / Autospecialist

Fits:Focus MK3 RSMade in house at AIRTEC HQ, our rear diffuser extension comes complete and ready to fit with all fixtures and fittings included. All you need to do is choose what position you would like it set to and drill the small, non-visible holes in the underside of the existing bumper to attach it.The result is a simple added slice of aerodynamic style to complete the rear-end look of any MK3 Focus RS.Features:Powder coated satin black finishBolts / Fitting kit provided#KeepItAirtec StickerUK made at AIRTEC HQ2 position adjustable length

£49.56£41.30 (ex. VAT)
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AIRTEC Italian Made Blower & Sucker Fans

Airtec / Autospecialist

Italian made Blower & Sucker fansBlower fan pushes the air through the radiator and the sucker fan pulls the air through the radiator.All the fans measure 2 inches height from centre & measure approx 1 inch on the outer edge.Please choose from options for desired size you require.

£74.95£62.46 (ex. VAT)
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AIRTEC Motorsport Focus MK3 Rear Diff Cooler

Airtec / Autospecialist

Fits:Focus MK3 RSDesigned to lower temperatures of the rear differential, AIRTEC Motorsport are proud to offer a rear diff cooler for the Mk3 Focus RS.With the rear differential on the new Mk3 Focus RS already proven to be a weak point from factory, causing warning lights to display the AIRTEC motorsport diff cooler is a must have part for your Focus RS.This diff cooler used original mounting holes and comes pre-drilled ready to install making it a quick and easy install - No drilling required!Forces the air which would normally pass under the car, to be redirected straight into the cooling fins. Making this a must have for RS owners planning to hit the race track.Comes with complete fitting kit ready to fit.

£77.12£64.27 (ex. VAT)
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AIRTEC Motorsport Focus MK3 RS & ST250 Oil Cooler Kit

Airtec / Autospecialist

Fits:Focus MK3 RS & ST250AIRTEC Motorsport are proud to offer the oil cooler kit for the Focus RS MK3 & Focus ST250.Long overdue but its been worth the wait, making every part of our AIRTEC Motorsport oil cooler kit unique and finished to a stunning level of quality.Grille mounted to achieve maximum cold airflow and fits either side of grill as not to affect cold air feed for air filters.Kit Includes:13 row high performance AIRTEC motorsport oil coolerAeroquip 90 degree Black anodised fittings with Black Pro-Lite Oil hoseBillets anodised Black hose line separators x 4Gearbox mounted hose securing bracket finished in Pro-Series BlackTodays high performance vehicles pack a lot of power in a smaller package.In order to save both weight and space, the typical OEM cooling system is designed for normal driving conditions.When driven hard for extended periods, the cooling system may prove less than adequate.AIRTEC offers the solution to marginal cooling systems race proven lightweight and efficient oil coolers designed to fit in the smallest practical space.

£341.50£284.58 (ex. VAT)
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Direnza Ford Focus MK3 RS 2.3 16-18 Aluminium Performance Radiator

Direnza

A direct replacement for the standard part, Direnza radiators feature twin-core technology for optimised cooling capability. Constructed from aircraft grade aluminium (a material well-known for its excellent thermal conductivity), our radiators are the perfect addition to any car, including those driven hard on track.Designed and developed in-house by Direnza engineers, our radiators provide as much as 40% additional cooling capacity compared with standard radiator systems, their robust yet intricate design, and exceptional cooling performance a testament to our R&D processes.Direnza radiators are TIG-welded for additional strength and durability. TIG welding also provides a more precise finish than MIG welding, and reduces stress on the material at hand. Our radiators will enhance the appearance of any engine bay.                        

£349.99£291.66 (ex. VAT)
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Direnza Ford Focus MK3 2.3 RS 2012+ MVT Front Mount Intercooler Kit with pipework

Direnza

This kit provided an increase of +9.4hp and +8.6nmIntercooler outlet temps dropped 8.4°cCarefully designed using state of the art 3D CAD and CFD modellingDirect replacement for the original IntercoolerTIG welded for maximum strength and durabilityMVT technology designed by Direnza offers greater intercooler efficiency in comparison to other aftermarket alternatives. This is achieved through the use of carefully placed vanes in the end tank which evenly distribute air across the entire core. Ensuring the full surface area of the intercooler core is optimised to cool your charged air, resulting in more power.Test car: Ford Focus MK3 RS 2018 298.9hp / 450.2nmPut through its paces on a state-of-the-art Maha MSR 500 Dyno, our Multi Vane Technology Intercooler for the Ford Focus MK3 RS produced some very impressive results.After installing our revolutionary MVT Intercooler, engine performance improved significantly. With the RS now producing 308.3hp & 458.8nm of torque, that’s an increase of +9.4hp & 8.6nm of torque without any additional tuning.Using sophisticated data logging software, we measured intercooler outlet temperatures 8.4°c lower with MVT installed. We also found pressure drop across the core was 0.62psi lower than standard. Thus, providing huge tuning potential and greater reliability when combined with a remap & supporting modifications. The perfect addition to any track or modified road car!Click here to download fitting instructions

£407.99£339.99 (ex. VAT)£479.99£399.99 (ex. VAT)
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Direnza Ford Focus MK3 2.3 RS 2012+ MVT Front Mount Intercooler Kit with pipework

Direnza

This kit provided an increase of +9.4hp and +8.6nmIntercooler outlet temps dropped 8.4°cCarefully designed using state of the art 3D CAD and CFD modellingDirect replacement for the original IntercoolerTIG welded for maximum strength and durabilityMVT technology designed by Direnza offers greater intercooler efficiency in comparison to other aftermarket alternatives. This is achieved through the use of carefully placed vanes in the end tank which evenly distribute air across the entire core. Ensuring the full surface area of the intercooler core is optimised to cool your charged air, resulting in more power.Test car: Ford Focus MK3 RS 2018 298.9hp / 450.2nmPut through its paces on a state-of-the-art Maha MSR 500 Dyno, our Multi Vane Technology Intercooler for the Ford Focus MK3 RS produced some very impressive results.After installing our revolutionary MVT Intercooler, engine performance improved significantly. With the RS now producing 308.3hp & 458.8nm of torque, that’s an increase of +9.4hp & 8.6nm of torque without any additional tuning.Using sophisticated data logging software, we measured intercooler outlet temperatures 8.4°c lower with MVT installed. We also found pressure drop across the core was 0.62psi lower than standard. Thus, providing huge tuning potential and greater reliability when combined with a remap & supporting modifications. The perfect addition to any track or modified road car!Click here to download fitting instructions

£479.99£399.99 (ex. VAT)
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Direnza Ford Focus MK3 2.3 RS 2012+ MVT Front Mount Intercooler & Air Scoop Kit

Direnza

This kit provided an increase of +9.4hp and +8.6nmIntercooler outlet temps dropped 8.4°cCarefully designed using state of the art 3D CAD and CFD modellingDirect replacement for the original IntercoolerTIG welded for maximum strength and durabilityMVT technology designed by Direnza offers greater intercooler efficiency in comparison to other aftermarket alternatives. This is achieved through the use of carefully placed vanes in the end tank which evenly distribute air across the entire core. Ensuring the full surface area of the intercooler core is optimised to cool your charged air, resulting in more power.Test car: Ford Focus MK3 RS 2018 298.9hp / 450.2nmPut through its paces on a state-of-the-art Maha MSR 500 Dyno, our Multi Vane Technology Intercooler for the Ford Focus MK3 RS produced some very impressive results.After installing our revolutionary MVT Intercooler, engine performance improved significantly. With the RS now producing 308.3hp & 458.8nm of torque, that’s an increase of +9.4hp & 8.6nm of torque without any additional tuning.Using sophisticated data logging software, we measured intercooler outlet temperatures 8.4°c lower with MVT installed. We also found pressure drop across the core was 0.62psi lower than standard. Thus, providing huge tuning potential and greater reliability when combined with a remap & supporting modifications. The perfect addition to any track or modified road car!Click here to download fitting instructions

£539.99£449.99 (ex. VAT)
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AIRTEC Front Mount Intercooler for Focus MK3 RS

Airtec / Autospecialist

Fits:Focus MK3 RSThe AIRTEC intercooler is the only off the shelf intercooler that uses a 100mm deep core! We use this core only in the most extreme coolers, we name the 100mm core 'GobStopper' due to it's amazing cooling properties.The AIRTEC intercooler for the Mk3 Focus RS is already proving itself to be a huge hit in the RS scene and the must have for remapped cars. With the standard intercooler being pretty up to scratch, AIRTEC have taken this intercooler to a whole new level.Features of Stage 3:Smooth flow curved end tanks, for that ultimate flowHuge high flow 100mm coreAir-Ram Scoop, forces Air directly into core of intercoolerFitting takes 1-2 hoursIncreased BHP & torque FigureAvailable in Pro-Series Black or Natural SilverStrongest Intercooler available, backed up by our 3 year warranty.Fabricated in the UK, in house.Core Thickness 100mm 'this is used on a Syvecs powered 800bhp focus rs with an intake temp of 34 degrees'Height 220mmWidth 896mmAmbient 16.0 degrees centigradeTest results:Into intercooler in degrees centigradeRun 1 - 155Run 2 - 157Run 3 - 160Out of intercooler in degrees centigradeRun 1 - 18 Run 2 - 18Run 3 - 19Intercooler Volume Capacity (The amount of charged air that the intercooler can hold)Standard: 4.4AIRTEC: 7.3-litres

£545.74£454.78 (ex. VAT)
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COBB Hard boost pipe kit - MK3 Focus RS

COBB Tuning

Fits: Ford Focus RS 2016-2018Replacing the factory plastic tubing with 2.5" mandrel bent piping, the COBB Focus RS Hard Pipe Kit removes restriction and improves airflow to the engine of your Focus RS. This kit consists of single piece pipes made from mandrel bent aluminum tubing on both the cold side and hot side of the intercooler. The results are weld-free pipes from the turbo outlet to intercooler inlet and from the intercooler outlet to the throttle body. COBB 4-ply silicone hose couplings and heavy duty T-Bolt hose clamps finish off this kit and ensure the pipes stay put.The Focus RS Hard Pipe Kit allows the use of the factory intercooler core while cleaning up the engine bay and freeing up airflow to the engine.Features:2.5" Mandrel Bent Aluminum PipingWrinkle Black Powder Coat FinishBlack 4-Ply Silicone CouplersCompatible with OE and OE Replacement Intercooler CoresIf this item is not showing as in stock with us, this would be ordered direct from COBB Tuning, so this could take up to two weeks to arrive to you. 

£550.00£458.33 (ex. VAT)
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Focus RS MK3 Boost Pipe Kit - Pro Alloy

Pro Alloy

Our hard pipe kit for the RS MK3 is an absolute must for high power cars. It eliminates all the restrictions created by the standard boost pipes whilst offering added strength and reliability to higher boost applications. Easy fitment with no modifications required. We supply the full kit replacing the restrictive 51mm pipework with a strong lightweight alloy pipe with 63mm bore. CNC machined boss, stainless steel hose clips, high quality 5 ply silicone hoses with the turbo outlet hose supplied with high temperature Nomex lining for added strength. Can be used with the our front mount intercooler or with the standard unit.Available in either satin silver or satin black. Silicone hoses are black as standard

£586.80£489.00 (ex. VAT)
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Focus RS MK3 Intercooler - Pro Alloy

Pro Alloy

Even though we were one of the lucky few to get our hands on one of the first RS MK3's in the country, we decided to take our time with our new line of products and make them right. When fitting upgraded parts to a car hot off the production line, you'll be after the very best in quality, which is why (as always) we've designed our parts to fit to the same precision as the OEM part. No chopping or grinding to your car, a straight bolt on fitment, with comprehensive step by step fitting instructions included to make the job simple.The new all aluminium Intercooler features a large air scoop surrounding the core face to grab all the incoming air from the RS's front bumper, ramming it through the light weight tube and fin core. The end tanks are designed for maximum flow and strength and are shaped to guide the air through the core with as little resistance as possible. Each end tank is individually hand crafted by our team of Engineers, with precision TIG welding on the inside and outside of the tanks. This helps to improve charge air flow through the internal surfaces, as well as making them ultra strong - a massive improvement over the weak, OE crimped on, plastic part.Dimension differencesThe overall size of the unit has grown drastically, the stats below show how much more core we've managed to fit behind the front bumper.Standard Intercooler vs. Pro Alloy Intercooler key details:Standard Intercooler Core Details:    1 off Intercooler @ 615 x 195mm    Single Row Core    11 Live Tubes    External Tube size                = 80mm x 10mm    Internal Tube Size                = 79.6mm x 9.6mm   Pro Alloy Intercooler Core Details:    1 off Intercooler @ 680 x 220mm    Twin Row Core    28 Live Tubes    External Tube size                = 50mm x 8mm    Internal Tube Size                = 49.2mm x 7.2mmCalculated External Surface Area & Internal Flow Comparison:    24.9% Increase in external core surface area when the Pro Alloy Intercooler is compared to the standard Intercooler.    23.8% Increase in internal flow area when the Pro Alloy Intercooler is compared to the standard Intercooler.Results from testingFor months we gathered data to see how our new creation stacks up against the OEM unit. Controlled test on the Dyno as well on the road data logging. With a larger more efficient core and efficient end tank design the results are impressive. As well as our own testing we supplied a prototype kit to a well known Focus tuning specialist to enable them to compare our new kit to some of the other well known brands. The Dyno graph shows how the new kit stacks up against the competition.The dyno graph shows a 30% improvement in cooling efficiency when compared to the OEM intercooler and a 10% improvement when compared to the other aftermarket intercoolers.The 'fit and forget' bolt on type of fitting also makes the installation easily reversible if you want to return back to standard. All our intercoolers are pressure tested to insure they can handle the required boost pressures they're up against once installed. As with all our products, this is covered by our warranty policy to back up our confidence in our products.Available in satin silver or satin black, with or without core face logo.

£823.72£686.43 (ex. VAT)£969.08£807.57 (ex. VAT)
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AIRTEC Intercooler Upgrade & Big Boost Pipe Package for Mk3 Focus RS

Airtec / Autospecialist

AIRTEC huge front mount intercooler for Mk3 Focus RS.The AIRTEC intercooler is the only off the shelf intercooler that uses a 100mm deep core! We use this core only in the most extreme coolers, we name the 100mm core 'GobStopper' due to it's amazing cooling properties.Features:Smooth flow curved end tanks, for that ultimate flowHuge high flow 100mm coreAir-Ram Scoop, forces Air directly into core of intercoolerFitting takes 1-2 hoursIncreased BHP & torque FigureAvailable in Pro-Series Black or Natural SilverStrongest Intercooler available, backed up by our 3 year warranty.Fabricated in the UK, in house.Core Thickness 100mm - This is used on a Syvecs powered 800bhp Focus RS with an intake temp of 34 degrees.Height 220mmWidth 896mmThe 2.5" big boost pipe kit is a must for a remapped RS, everything you need is included in the kit.Features:Hot side (turbo to intercooler) is made from 2.5" light-weight alloy and connected with Pro Hoses 5 ply silicone hose joiners.Available in Pro-Series Black or Motorsport Silver pipeworkWill fit With the following intercoolersOur 2.5" hard pipe upgrade removes Ford's 2.0" restrictive boost pipes and can see 'bolt on power'.This kit is designed for BIG BHP / Remapped Focus RS's. All pipes have swaged ends to stop the pipes blowing off on higher power cars.AIRTEC part no: ATINTFO51

£920.31£766.93 (ex. VAT)
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COBB Front mount intercooler - Focus RS MK3

COBB Tuning

The COBB Front Mount Intercooler (FMIC) for your Focus RS is the easiest way to drastically improve power when coupled with tuning from the V3 Accessport. The much larger 26" x 8.6" x 5" core produces a significant volume increase compared to stock, resulting in up to 25% improved efficiency with only about a .3-.5 psi pressure drop despite the significant increase in size.A unique feature is the custom designed fin within the "hot side" endtank to help evenly disperse incoming air across the entire core.Install is easy with no bumper trimming required and worm clamps ensure a leak free connection to the factory charge pipes.Combined with an Accessport, upgrading the stock intercooler is a no brainer as the best bang for your buck modification on a Focus RS. Efficiency is the name of the game and this inter-cooler will get the most out of your stock turbo and still has plenty left over for future upgrades to go along with it.Features:Larger 26" x 8.6" x 5" Core SizeBar and Plate structureCast Endtanks with the COBB logoNo cutting or fabrication required for installIf this item is not showing as in stock with us, this would be ordered direct from COBB Tuning, so this could take up to two weeks to arrive to you. 

£950.00£791.67 (ex. VAT)
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Focus RS MK3 Intercooler - Pro Alloy

Pro Alloy

Even though we were one of the lucky few to get our hands on one of the first RS MK3's in the country, we decided to take our time with our new line of products and make them right. When fitting upgraded parts to a car hot off the production line, you'll be after the very best in quality, which is why (as always) we've designed our parts to fit to the same precision as the OEM part. No chopping or grinding to your car, a straight bolt on fitment, with comprehensive step by step fitting instructions included to make the job simple.The new all aluminium Intercooler features a large air scoop surrounding the core face to grab all the incoming air from the RS's front bumper, ramming it through the light weight tube and fin core. The end tanks are designed for maximum flow and strength and are shaped to guide the air through the core with as little resistance as possible. Each end tank is individually hand crafted by our team of Engineers, with precision TIG welding on the inside and outside of the tanks. This helps to improve charge air flow through the internal surfaces, as well as making them ultra strong - a massive improvement over the weak, OE crimped on, plastic part.Dimension differencesThe overall size of the unit has grown drastically, the stats below show how much more core we've managed to fit behind the front bumper.Standard Intercooler vs. Pro Alloy Intercooler key details:Standard Intercooler Core Details:    1 off Intercooler @ 615 x 195mm    Single Row Core    11 Live Tubes    External Tube size                = 80mm x 10mm    Internal Tube Size                = 79.6mm x 9.6mm   Pro Alloy Intercooler Core Details:    1 off Intercooler @ 680 x 220mm    Twin Row Core    28 Live Tubes    External Tube size                = 50mm x 8mm    Internal Tube Size                = 49.2mm x 7.2mmCalculated External Surface Area & Internal Flow Comparison:    24.9% Increase in external core surface area when the Pro Alloy Intercooler is compared to the standard Intercooler.    23.8% Increase in internal flow area when the Pro Alloy Intercooler is compared to the standard Intercooler.Results from testingFor months we gathered data to see how our new creation stacks up against the OEM unit. Controlled test on the Dyno as well on the road data logging. With a larger more efficient core and efficient end tank design the results are impressive. As well as our own testing we supplied a prototype kit to a well known Focus tuning specialist to enable them to compare our new kit to some of the other well known brands. The Dyno graph shows how the new kit stacks up against the competition.The dyno graph shows a 30% improvement in cooling efficiency when compared to the OEM intercooler and a 10% improvement when compared to the other aftermarket intercoolers.The 'fit and forget' bolt on type of fitting also makes the installation easily reversible if you want to return back to standard. All our intercoolers are pressure tested to insure they can handle the required boost pressures they're up against once installed. As with all our products, this is covered by our warranty policy to back up our confidence in our products.Available in satin silver or satin black, with or without core face logo.

£969.08£807.57 (ex. VAT)
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Focus RS MK3 Radiator - Pro Alloy

Pro Alloy

Pro Alloy is one of the first motorsport companies worldwide to develop a radiator upgrade for the MK3, all designed, tested and built in our UK manufacturing facility using our own MK3 development vehicle. This has given us the opportunity to carry out some long term durability & performance testing with our first development radiator which clocked up in excess of 20,000 road and track miles.As with most modern production cars the standard front end packaging is very compact with all the available space being used very efficiently. This creates a number of challenges when trying to design an up-rated unit which fits without the need to modify the car. Due to these factors it was quickly apparent that there wouldnt be space within the constraints of the standard cooling hardware to install a radiator which has a huge increase in surface area.Our connections with the Ford design team and engineers confirmed that the cooling performance of the standard set-up was actually pretty effective with the standard cars running close to thermostat opening point even under full load. They did however highlight that flow rates around the system are critical, and a reduction in flow through the radiator could affect water flow down to the Power Transfer Unit (PTU) which could cause reliability issue. This therefore ruled out building a multi pass radiator as this could cause too greater flow restriction and potentially create issues with the cooling of the PTU.Due to these factors we have focused on looking for gains in surface area, internal water flow around the system, and reliability. As most tuned and modified cars are likely to be fitted with larger, up-rated intercoolers the ambient airflow to the radiator can be compromised, we have therefore increased the tube pitching of the new radiator core to maintain good ambient airflow through the radiator and with an increase in core thickness of 11%, achieved a gain in internal water flow of 5%. The increases we were able to make to the frontal area of the core ultimately giving an increase in surface area of 4.5%. The new Pro Alloy radiator is of an all aluminium construction and is skilfully TIG welded by our highly trained engineers. Being aluminium there are no plastic end tanks like the ones found on the original Ford unit - This mass produced style of radiator is always a weak point in any cooling system as the plastic are well known for bursting or cracking.This new radiator upgrade is the perfect addition to our ever expanding range of Focus RS MK3 products and has been designed to give improved performance and reliability on both modified and completely standard cars. Our skilled engineers have replicated all the original mounting points to enable a really simple installation and the standard fan assembly to be refitted just like the OE unit.This upgrade is available in either satin silver or satin black.

£1,091.65£909.71 (ex. VAT)
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COBB Front mount intercooler kit - Focus RS MK3

COBB Tuning

The COBB Focus RS Front Mount Intercooler (FMIC) Kit combines our high volume intercooler core and our 2.5" mandrel bent hard pipe kit into one package for the best overall intercooler upgrade.Intercooler efficiency is increased by up to 25% over stock due to the larger 26"x 8.6" x 5" bar and plate core. The cast aluminum endtanks include a custom designed fin on the inlet side that evenly disperses air across the core to aid in maintaining pressure in spite of the increased volume.4-ply silicone couplers and strong worm clamps combined with the all aluminum construction of the hard pipe kit and core allow the entire system to handle much higher boost, even in extreme driving conditions...well beyond the original factory capabilities.If you plan to modify your Focus RS. Upgrading the intercooler should be very near the top of your parts list. We've gone to great lengths to thoroughly design and test this complete system to overcome all factory weaknesses while adding proven performance features of our own. To make sure the COBB Focus RS intercooler allows you to find the cars true limits instead of being one of them.Features:Large 26" x 8.6" x 5" Core Size2.5" Mandrel Bent Charge Pipes with Wrinkle Black Powder Coat FinishUp to 25% Increased Efficiency over StockAll Aluminum Construction4-ply Black Silicone CouplersIf this item is not showing as in stock with us, this would be ordered direct from COBB Tuning, so this could take up to two weeks to arrive to you. 

£1,425.00£1,187.50 (ex. VAT)