The Garrett POWERMAX Black Intercooler Upgrade Kit is a direct-fit performance charge air cooler engineered for BMW M3 and M4 owners who demand more from their factory-turbocharged platform without sacrificing OEM installation simplicity. Built for enthusiasts pushing serious power, this intercooler tackles heat soak head-on, unlocking horsepower that’s otherwise lost to rising intake temperatures. It’s the upgrade for drivers who want measurable gains backed by real dyno data, not marketing promises.
Specifications
- Core Size: 7.2″ x 9.8″ x 3.6″ (183mm x 249mm x 92mm)
- Core Design: 47% larger than stock
- Construction: Bar-and-plate
- Cooling Type: Air-to-water design
- End Tanks: Cast aluminum, CFD optimized
- Coolant Flow: Dual pass
- HP Capacity: Supports up to 980 HP
- Average Intake Temp Reduction: 10°F
- Measured Gains: 12.4 horsepower and 4.9 lb-ft torque (back to back dyno pulls)
- Installation Time: 1.5 hours
- Installation Type: Direct fit, stock location
- Garrett P/N: 888883-6002
Performance & Application
This POWERMAX intercooler is purpose-built for the 2015+ BMW M3 and M4 running the 3.0L twin-turbo platform, targeting drivers who have modified their vehicle or plan to push power levels well beyond stock output. By combining a significantly larger core with dual pass coolant flow and CFD optimized end tanks, this unit is designed to keep intake air charge cooler under sustained hard driving, track use, and repeated pulls. The result is more consistent power delivery as heat saturation is delayed, making it ideal for owners chasing repeatable performance rather than a single dyno number. Because it reuses the stock bolts, hoses, and clamps, it’s built to bolt into the factory intercooler location without custom fabrication.
Compatibility & Fitment
- BMW M3 (F80) 2015+ 3.0L Twin-Turbo
- BMW M4 (F82/F83) 2015+ 3.0L Twin-Turbo
Frequently Asked Questions
- How much horsepower can this intercooler support?
- The Garrett POWERMAX intercooler for the BMW M3/M4 supports up to 980 HP.
- How much larger is this core compared to the stock intercooler?
- The core is 47% larger than the factory stock intercooler.
- Will this intercooler work with my stock mounting hardware?
- Yes, this direct fit performance intercooler installs in the stock location and reuses the stock bolts, hoses, and clamps.
- How much of a performance gain can I expect?
- An average increase of 12.4 horsepower and 4.9 lb-ft of torque was measured during back to back dyno pulls, along with an average reduction in intake manifold temperatures of 10°F.
For BMW M3/M4 owners who refuse to let heat soak cap their power potential, the Garrett POWERMAX intercooler (P/N 888883-6002) delivers proven, dyno-verified gains in a direct-fit package engineered for serious performance.
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