WCFab 4" Turbo Down Pipe for 2004.5-2007 5.9L Cummins with High Mount style turbo on 2nd Gen style exhaust manifold allows for a quick and simple down pipe install. No cutting of your exhaust system required! This down pipe connects to the v-band flange on the exhaust pipe just as your factory turbo/cast elbow did. The upper flange measures 4" diameter to mate with S300 exhaust housing. The lower flange connects to the factory exhaust system v-band flange using the OEM v-band clamp. This down pipe is high-temperature ceramic coated and includes heat wrap with clamps and a 3.5" V-band Clamp for turbo connection.

• 4" Turbo Down Pipe for 2004.5-2007 5.9L Cummins with High Mount style turbo on 2nd Gen style exhaust manifold
• Also compatible with 2003-2004 model year trucks which have updated their exhaust system front pipe to the 2004.5-2007 style part
• Made in USA
• The lower v-band flange connects to the factory exhaust system v-band flange using the OEM v-band clamp (New replacement OEM V-Band Clamp sold separate).
• The S300 version (WCF100281) is meant for use with HX40 type, flat exhaust housing flange, which measures 4" diameter. (3.5" v-band clamp included)
• This down pipe comes black high-temperature ceramic coated and includes heat wrap with clamps and V-band Clamp for turbo housing connection.