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I deleted my cats, welded pipe in, goes to a flowmaster super 40 and sounds absolutely sick. The stock pipe off the manifolds is 2.5, where cats were I used 2.75, obviously going to throw codes but thats fixable w/ anti foulers or a tune. Its loud and clean if you or a buddy are handy with a...

2000 w/ 229,000 and counting 229,000 and counting on my 2000. My daily. Original motor, previous owner made it seem like he took care of it. Cosmetically he did, after I purchased went through did full tune up, breaks, plugs, wires, ect. Had original factory plugs still in. Oil was about 10,000...

What did you end up doing? I'm thinking about deleting the Cats as well. I've read it's ok, it's not ok, the bad vs. good seems about to even out so just wondering what way you went.

No not a strong I smell, normal to me at least. though it seems to not want to down shift at times and is boggy in low/mid rpm on take off, assuming that's due to the lean af mixture. Ill start there. Thanks guys. Just going to delete them completely, with the ol' spark anti fouler trick.

So just replacing the cat and all will be well? It is kind of annoying since I just put in High-Flow cats about 2 months ago. Could it just need to be reset or tuned? I have a CAI to the High-flow cats, to flowmaster super 40 out normal OEM tailpipe. I also used sea-foam in engine, would that...

Hi All, New to the whole forum thing. Stumbled upon this while searching for help/info for some issues going on with my Tahoe. Looks like this is the place for my answers. I love my hoe and am excited to make it what I want it to be with the help from ya'll. Small background about me: When I...

New to the whole mod/tuning/mechanic period. Any suggestions when I post or can't find it in a existing thread would be greatly appreciated! Thanks in advance.

I had the same issue with the pressure gauge. I read it could be bad gauge, sending unit, oil pump, or worse case its done for, but you never know. Bad seals can cause it too. I'm new to mechanics so don't take my word for it. I will say this though, the '13 rims look sweet on our body syle.

I bought a 2000 Tahoe w/ 5.3 ran it for about a month, did a tune up, plugs, wires, oil ect. I also put on a cold air kit, and flowmaster exhaust. I'm now pulling a p0420 code. I am new to the mechanic side and learning as I go. I know what the code is, so I did a diagnostic pull and am...