Whether you’re doing laps at the track, making 200 MPH roll racing pulls, or just driving in a hot climate, the AMS Performance BMW G8X Heat Exchanger for the M2, M3, and M4 is engineered to keep your intake temps down and your power output up. Designed as a high performance, drop-in solution, this heat exchanger is the largest and most effective unit available on the market, delivering superior cooling capacity without the need for any modifications. The 3.0L S58 twin-turbocharged engine in your G8X BMW uses an air-to-water intercooler system, where coolant is used to manage intake air temperatures. While the factory setup may work under mild conditions and stock horsepower levels, it quickly becomes a limiting factor during aggressive driving — causing heat soak and reducing power. The AMS Heat Exchanger solves this problem with a 35% larger core and dramatically more efficient design built for enthusiasts who demand the most from their vehicle.

• Largest Drop-In Heat Exchanger Available on the Market

• Dual Pass Design with 35% Larger Core for Maximum Cooling

• Robust Billet 6061 T6 Aluminum End Tanks

• 16°F Lower Coolant Temps Than the Competition

• CAD Designed and CNC Machined for Perfect Fitment

• Drastically Increased Coolant Flow for Unbeatable Efficiency

• AMS-Spec Core Fin Height and Density for Optimized Heat Transfer

• Double the Fluid Capacity Over OEM Further Increases Thermal Stability

• Direct Bolt-on Installation, Requires No Cutting or Drilling

• Can Be Used on Stock or Modified Vehicles to Reduce Heat Soak