MBRP 5" or 4"??? - Page 2

**Meyerperformance** · 09-20-2008, 06:29 AM

Let me know if you have any questions about deleting your dpf, i have a LMM. ANd have deleted the DPF. Its very simple. As for exhaust size 5" will give a little more flow and lower egt's, and the wow factor. But 4" is more than enough. Cummins test 14L engines with 3".

Thanks Tyler
MPF,LLC

**DSTRBD** · 09-23-2008, 10:31 AM

An LMM DPF delete kit is nothing more than an aftermarket full system that fits the 01-07 Duramax. In MBRPs case, they call them "down-pipe back" kits. One of their systems coupled with either a Quadzilla Stealth II or a PPE HOT RACE Xcelerator will get you what you need to delete the DPF. The programmers are necessary to fool the computer into thinking the sensors are still working properly and to disable regen. The programmers will also have several different power settings for everything from Economy to racing. Most people see a 3 mpg gain with reports of up to 5. Feel free to give me a call if you have any questions on these kits.

**Meyerperformance** · 09-23-2008, 12:04 PM

The tuner isn't necessary, just have to have it to clear cel, truck will run fine with CEL on though.

Tyler
MPF,LLC

tshideler · 09-23-2008, 12:25 PM

dont forget removing it will void your warrenty

**Meyerperformance** · 09-23-2008, 12:40 PM

Yes true unless you have the right dealer.

**DSTRBD** · 09-23-2008, 01:13 PM

You have the possibility of your warranty getting voided, yes. This is why we suggest returning your truck back to stock before returning to the dealer. Most people NEVER have to go back to the dealership for anything anyway so its not an issue.

**Meyerperformance** · 09-23-2008, 01:18 PM

They can still tell the ECM has been reflashed its just how they want to treat you.

Tyler

**DSTRBD** · 09-23-2008, 01:56 PM

They can do and tell whatever they want. However, they are not going to go snooping into your ecm for general warranty issues etc. If you go in with a melted engine, thats another story. Most dealerships are doing whatever they can to keep the customers they have. If they void your warranty, they know they have lost your business forever. That being said, there are still some real a-holes out there.

**Meyerperformance** · 09-23-2008, 01:59 PM

Exactly of they want to think about the long term potential, of money they will make off you, they wont void.

Iceman56 · 09-23-2008, 06:43 PM

Thanks guys so if I loose an injector or something like that do you think I should take the whole system off? Cause that would suck. I have a pretty good dealer, been with him for a long time but have never confronted him about this.