chutrain's 1988 BMW M3 on CarDomain

Aluminum Air Box
The power plant is a high-performance 4-cylinder, a direct descendent of the M10 F-1 powerplant. The engine has a forged crank, a four valve head and strengthened internals, with 2.3 liters and 195 hp with a catalytic converter and 200 hp without.

The engine has been worked on by Korman. The previous owner put about $8,000 worth of performance parts into the car. I believe he installed the Korman Evolution Sport Kit that puts out about 225 horsepower. "This high performance kit was developed with the technical assistance of BMW Motorsport, Munich. This is the strongest, emissions legal package you can just bolt on your present engine and with no loss in mid-range power. Includes the Stage 1 kit plus Motorsport intake cam (264 degree 10.55mm lift), 16 high performance dual valve springs, lightweight flywheel kit. Revs rapidly to 7400 RPM."

The Sport Kit includes all the parts in Stage 1: "The best horsepower per dollar upgrade available for your M3. Kit includes a performance chip developed on our dyno, BMW Motorsport Offset Exhaust Cam Gear for increased mid-range power, Evolution lower air filter housing/intake horn assembly, and a K&N Filtercharger." The performance chip that is being used is an Authority Chip.