07.5+ LMM Duramax PowertrainDiscussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect
OK, the deed is done, just this afternoon I removed the catalytic converter and DPF and replaced with a MBRP 4" exhaust... AND installed a no DPF tune with a Quadzilla Stealth 2... The truck has 1900 miles on the odometer and I've already stopped at too many fuel stations! So far I've averaged 14.5 mpg. I've got to play a little tomorrow with the increased HP tunes and then I will try to settle down with the Economy tune. Thanks, Tyler and Meyers Performance... Oh! and I'm pleased with the quiet exhaust... unless I roll down the window I can't tell it from stock. Oh yea! now I've got to change my signature.
Joe
__________________ 08 Chevy Duramax LT extended cab long bed - 4" MBRP turbo back exhaust - Quadzilla Stealth 2 DPF and Cat deleted!
I've thinking of doing the same to mine, I hate the sound it's too quiet for a diesel. I just hate the fact that I'll lose the warrenty, I do all the service myself but if something costly goes it's going to suck. Is it true that you have to sign a wavier when ordering?
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