Expert's advice:
Garrett Motion direct fit performance charge air cooler for the 2015+ BMW M2 Competition, M3 and M4 (S55 engine) boasts a 47% larger core with dual pass coolant flow to help reduce intake manifold temperatures by an average of 12℃ (10 °F). CFD optimized end tanks improve airflow through the core. An average increase of 12.4 horsepower and 4.9 lb-ft of torque were measured during back-to-back dyno pulls.
This direct-fit performance intercooler installs in 1.5 hours and reuses the stock bolts, hoses, and clamps.
Mark Hendrikx - Automotive engineer at Mosselman