Garrett PowerMax BMW M3/M4 S55 Top-Mount Intercooler (Air-to-Liquid Charge Cooler) F80 F82 F83 2015+ - Direct-Fit Performance Upgrade, Bar-and-Plate, Dual Pass - 888883-6001 / 888883-6002

Garrett PowerMax charge air cooler upgrade for BMW F8x S55

Give your F80, F82 or F83 a serious cooling advantage with the Garrett PowerMax top mounted water to air charge air cooler. This drop in, plug and play cooler replaces the factory unit in the OEM position and delivers colder intake temps, repeatable performance and rock solid reliability on the road, on fast road blasts and on circuit days. Built by Garrett with a high efficiency bar and plate core and cast aluminium end tanks, it is the proven choice for tuned and stock S55 engines looking for consistent power.

Big cooling. Small effort. Real results.

• 47 percent larger core volume than the factory cooler for faster IAT recovery and reduced heat soak
• Two pass coolant path for superb temperature control during sustained pulls
• Bar and plate construction with cast alloy tanks for strength, durability and smooth airflow
• Direct replacement in the original location using the standard bolts, hoses and clamps
• Designed specifically for the turbocharged S55 straight six
• Supports builds up to 980 hp while remaining perfectly suited to Stage 1 and Stage 2 remaps

Dyno proven performance you can feel

Back to back testing shows genuine gains once the stock unit heat soaks. Expect an average increase of 12.4 hp and 4.9 lb ft after heat soak, rising to 18.7 hp and 6.4 lb ft by the 15th consecutive run. You also get cooler charge temps, higher airflow and better pressure retention for stronger, more repeatable pulls.

• Approx 10 °F lower outlet temperature after heat soak
• About 2 lb per min higher charge mass flow after the 10th run
• Roughly 1.5 psi higher charge pressure after the 10th run
• 92 percent instantaneous effectiveness vs 90 percent OE

Specifications

• Type: Water to air charge cooler with two pass coolant routing
• Core: Bar and plate
• Core dimensions: 7.2 in x 9.8 in x 3.6 in | 183 mm x 249 mm x 92 mm
• Weight: 14.10 lb
• Finish options: Aluminium or black
• Typical install time: around 1.5 hours

Vehicle compatibility

For 2015 onwards BMW models with the S55 engine:

• F80 M3
• F82 M4
• F83 M4 Convertible

Why enthusiasts choose this S55 cooler

We have fitted and run this Garrett unit on customer cars and our own builds. Feedback is consistently excellent. Lower charge temps, faster recovery between pulls and OEM style fitment make it a favourite for track day regulars, fast road drivers and anyone chasing reliable, repeatable power from their S55. It is a simple, high impact upgrade that complements hybrid turbos, upgraded radiators and remaps.

Fitting service

Want it installed by specialists We can help. Book professional fitting with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Part numbers

• 888883-6001 Aluminium finish
• 888883-6002 Black finish

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