CP Pistons are designed to improve engine power and reliability by using high-strength

ARP Custom Age 625+ bolts offer an impressive 260 ksi tensile strength

The downpipe is made of 3" stainless tubing in two pieces which is V-Band and connects to your factory or any aftermarket exhaust that accepts factory gaskets

The external "RETURN" port is used for low pressure fuel returning from the FPR

Mahle Motorsport PowerPak Piston Set, BMW S55 Compression Ratio:10.2:1 CP Pistons are designed toThe MAHLE Motorsport PowerPak kit is their high volume shelf stock program developed for high performance enthusiasts. PowerPak pistons are made from 2618 alloy to allow for increased detonation resistance. PowerPak Features: Forged piston for performance applications Fully machined crown Grafal anti Friction coating on skirts reduces drag, scuffing, friction and cylinder bore wear; reduces piston noise. Phosphate coated to reduce micro welding and