40 Series Delta Flow Muffler downpipes Exhaust System - American Thunder

Exhaust System - American Thunder - Cat-Back - 3 in Diameter - Single Rear Exit - 3

5 in Center Outlet - 18 x 5 x 4 in Oval Body - 24 in Long - Stainless - Natural - Universal - Each

5 in Center Outlet - 12 x 5 x 4 in Oval Body - 18 in Long - Stainless - Black Paint - Each

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

40 Series Delta Flow Muffler downpipes Exhaust System - American ThunderMuffler 40 Delta 3 in Offset Inlet 3 in Center Outlet 13 x 9. 75 x 4 in Oval Body 19 in Long Steel Black Paint Universal Each