Spring 6in Coil-Over 2.25in ID Throttle Bodies Muffler - 3 in Center

Muffler - 3 in Center Inlet - 3 in Center Outlet - 14 x 8 x 5 in Oval Body - 20 in Long - Stainless - Natural - Universal - Each

While not the easiest of things to accomplish

Dyno tuned for maximum exhaust flow with minimum backpressure

Catalytic Converter - Hi-Flow Matrix - 2

the M340i comes with a dry and lifeless air box housing a basic panel filter that is also accompanied by an intake resonator whose job it is to eliminate turbo/intake noises

Spring 6in Coil-Over 2.25in ID Throttle Bodies Muffler - 3 in CenterCoil Spring Coil Over 2. 25 in ID 6 in Length 400 lb in Spring Rate Steel Red Powder Coat Each