99-04 Mustang 4.6L A/T Cat-Back System Intercoolers it does give the engine

it does give the engine compartment an elegant refinement when the hood is popped

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

'Cool down' time is also reduced

Dinan's unique dual-core design allows 2 separate cores to be working in conjunction with one another at all times

5 in Center Outlet - 8 x 5 in Round Body - 13 in Long - Stainless - Natural - Universal - Each

99-04 Mustang 4.6L A/T Cat-Back System Intercoolers it does give the engineExhaust System American Thunder Cat Back 2. 5 in Diameter Dual Rear Exit 3 in Polished Tips Steel Aluminized Ford Modular GM Fullsize Truck 1999 2004 Kit