99-04 Mustang 4.6L A/T Cat-Back System Intercoolers the M340i comes with a

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

has been reworked and enlarged in an effort to make use of as much of the available real estate as possible within the engine bay

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

A worthy piece to add to an already impressive vehicle

reduced weight

99-04 Mustang 4.6L A/T Cat-Back System Intercoolers the M340i comes with aExhaust 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