2011-2015 Duramax LML P1 4" Downpipe Back Street Exhaust System w/ Muffler (C6044P) 2003 Ford Engine Components it is recommended that a

it is recommended that a performance air filter be installed in the vehicle to accommodate the extra flow

Upgrade the spin-on transmission filter with our PPE 228052150 Transmission Filter which has 57% larger filtration media for the best protection of your transmission

An upfront core charge is required

9L 125HP Injector Nozzle Set (DDPISB-125NZ)

Premium Gaskets & Seals Kit includes everything needed in a trans- mission rebuilding kit for optimal performance

2011-2015 Duramax LML P1 4" Downpipe Back Street Exhaust System w/ Muffler (C6044P) 2003 Ford Engine Components it is recommended that a2011 2015 Duramax LML P1 4" Downpipe Back Street Exhaust System w Muffler (C6044P) Maximize performance in your race built 2011 2015 GM Duramax 6. 6L with the P1 Performance Products C6044P 4" PL Series Downpipe Back Exhaust System. Built from heavy duty aluminized steel, the P1 Performance Products Performance Series exhaust systems offer a value price without compromising on the quality built into every component. While the seams are a major point