Cat delete

PC_Duramax · 06-24-2008, 01:08 PM

I was looking around under my new pickup while I was installing my B&W hitch and noticed no wires going into the cat. Does that mean if I delete it, it wont through any codes? I didn't pay any attention downstream if there was another sensor at the muffler. I had to go 400 miles to pick up my 5er toy hauler and was a little disappointed in the fuel mileage. I was very impressed in how easily it towed the trailer, lots of power, but got 6 mpg doing 73 mph. I was just happy it could pull the trailer that fast. Slowing down on the backroads at 55 mph I was getting 9 mpg. Thanks for your help.

psyco66 · 06-24-2008, 01:10 PM

If it is a LBZ just buy a turbo back and you will be good to go. If you want to get better MPG get a tuner like a PPE and your MPG will go up. If you are interested I have a brand new PPE tuner still in the box. 2001-2008 Duramax LB7/LLY/LBZ/LMM Standard Xcelerator [XG0108S] - $599.99 : Pacific Performance Engineering, Innovations in Diesel Performance Here is a link to the tuner.

**BigRedChevy** · 06-24-2008, 01:27 PM

You might get a low egr flow code if you delete it, but it is not a problem. It will not cause any performance problems and can easily be blocked with most tuners.

**Meyerperformance** · 06-24-2008, 01:49 PM

what they both said straight pipe and enjoy and add a tuner

Patches4 · 06-24-2008, 01:52 PM

That is some really nasty MPG's there!! Definately go with a larger turbo back system and check out the intake. Either replace with a cold air intake or at least do the mods on the air box. Like Pysco said, a good tuner will also help and the one he has is a good one.

PC_Duramax · 06-24-2008, 04:35 PM

Thanks for all the responses. Is there a cold air intake system that doesn't use air filters that need the conditioners like a K&N filter? I used to have a K&N, but I was having to clean it way to often, because I live in a very dry dusty climate. My old truck I just tore the hole box out and shoved an air filter used in a piece of equipment with a 4" hole in the end of the hose that went to the turbo. Thanks again.

GmcLbz · 06-24-2008, 04:56 PM

Afe and Amsoil make dry filters that you can clean with light air.

**DSTRBD** · 06-25-2008, 09:05 AM

I suggest an AFE Pro Dry S intake kit or AEM. Both use dry filter elements that do not require re-oiling. Let me know if you are interested, I can put you together a package price with everything you need.