PPE 116120000 OEM Length Replacement Up-Pipes 01-04 6.6L GM Duramax 2021 Chevrolet 6.6L Duramax L5P This feature also enables the

This feature also enables the cylinder head to be removed in tight quarters

Carli offers their Fabricated Shock Towers for increased strength and to allow fitment of this style of shock top You must select the apropriate shock tower that will work with the control arm and shock option you select

you will be required to purchase them or your new injectors will not seal properly

it will drastically hinder fuel flow

PPE 116120000 OEM Length Replacement Up-Pipes 01-04 6.6L GM Duramax 2021 Chevrolet 6.6L Duramax L5P This feature also enables thePPE's replacement up pipes are designed to improve exhaust flow for quicker turbo response and lower EGT's coupled with a solid construction that will not fail. Diesel engines (even stock) produce high temperatures and pressures. OEM up pipes eventually fail from constant temperature and pressure fluctuation. PPE has taken OEM replacement to a new level. PPE OEM Length Replacement Up Pipes are 50 State Emissions Legal (see notes below) and allow 53%