I got a 07.5 ccsb with 107k and i want the dpf cat and egr delete. I found a kit with the autocal that has the egr and cat delete as well, which costs roughly the same as the set that has auto cal egr delete and a 5" straight pipe. I like the look and better performance of the 5", but I dont want my truck to stand out in a way that gathers unwanted attention from cops. Whats the best option?

 

Anything you do will help your motor.
Are you planning on going straight pipe or with muffler?

 

I was thinking of going with the straight pipe if i do the 5 inch.

 

I'm thinking of doing the same except keeping the stock muffler. Delete DPF, CAT, and EGR with an auto cal EFI live. Looking for any input, thanks in advance
DB

 

Delete it and reap the benefits

Luke

 

Lukesdiesel,
I'm assuming you mean delete the muffler as well. My Dodge has an MBRP 4" and it's not bad for loud and I typically can make 13-14 MPG while towing about 9k. What pipe do you suggest. I don't live in an emission testing area but I do travel and tow my travel trailer and drift boat in them at times. I don't even want to think about being hassled by the law. But I do want the best MPG possible and I do believe that correct driving habits do not cause excessively harmful emissions.
thanks again,
DB

 

Hey Scuba,
What have you decide to do. I'm still not sure which way to go. Don't want to be loud but still want the advantages of the open up piped.
DB

 

I would do with the full 5" or 4" exhaust will a muffler and EFI Live.

Luke

 

Im leaning towards just getting the cat and dpf delete because then the only obstruction is the muffler, and it keeps the truck low profile.

 

I'm about ready to pull the trigger on efi live v2 with dsp5 and cat, dpf delete with egr block keep the muffler for now and see how it work. Looks like you can bolt a dpf back pipe on later if you keep the bolt flange system the GM has. I'm having a problem deciding on all 5 tunes. So far I want 1. modified stock 2. 20 hp heavy tow with t-brake, 3. 50 hp light tow with t-brake 4. economy. 5 ???