2019-2022 Cummins 6.7L P1 4" Race Pipe - No Muffler (CDAL447)2019 2022 Cummins 6. 7L P1 4" Race Pipe No Muffler (CDAL447) If you're looking to free up performance and stop having those pesky warning lights then this 4" race pipe is your ticket! With its high quality aluminized steel and its high flow setup, it means you'll be making great numbers out of your Cummins.

Recommended timing set to 17-18 degrees

Race tuning required

1 return filter head uses the same quick connect fittings and mounting hardware as the previous Gen2 filter

fostering inclusive cooperation

6L Duramax LBZ/LMM

competition use only

Enough fuel to support up to 850 RWHP with proper supporting modifications

It quickly re-liquefies gelled fuel and de-ices frozen fuel filters

4L 3-1/2" DPF Race Pipe (421001)

We have designed our MDS delete kits to be an all inclusive parts package that will remove MDS from your Hemi engine using high quality parts for supreme reliability

the P1 EGR Upgrade kit

most people end up focusing too much on the "compressor wheel" since that is what we can typically see