Thread: DP/U-Bend Delete/Exhaust Q??

I wanted to buy a Downpipe, or do the U-Bend Delete as a final precaution before I swap my Supercharger Pulley, but I am kind of confused as to what I would need to stretch for as price.

I looked at the Downpipe by ZZP (ZZ Performance)
and I am kind of lost and intimidated...

I would need, now correct me if I am wrong, a 3" Bolt-in/Weld-in w/cat, as I still need to pass emissions. What comes with this? Is this from the engine down, including the catalytic converter, and then goes to the joint where the resonator is, or what?

And then I won't need the bung for offroad or 04+ because I have 99 and want to keep it street legal.

And finally, weld in vs. bolt on. What would it be welded to? The joint where the two are bolted together at the moment or what?


I know it is a lot, but I appreciate it!

Thanks.

Originally Posted by Silver GTP

Just to give you a heads up, some high flow cats will trip the P0420 catalyst efficiency code and fail you on emissions if you can't delete it. I put a Magnaflow high flow cat in mine and got the code about 6 weeks later. You should make sure you have a way of taking care of that if it happens.

What do you mean "a way of taking care of that"? I have a scanner that can erase codes, but if they are reoccurring then is this an issue?

Thanks for your input!

Originally Posted by 01GTP

Get a 3" bolt in with cat and rear 02 bung. then it will go from the rear mani to the catback and have bungs for both your 02 sensors.

The Option says for offroad, does this still pertain if it is not the offroad one? And is it the front of the catback or does it include that? Does it req. me to use my stock cat?

Thanks for your input.