| Hii
I already have 4" DPF back exhaust MBRP.
2008 Duramax LMMm
I need the downpipe to go to the existing exhaust, I want the PPE to take care of the computer. Do you have to cap the EGR also
Please let me know what I need. It is a 08 Sierra 3500 I use to tow 3? Horse tailer ectm
Thanks Crai |