ZZP Downpipe?
#1
ZZP Downpipe?
I know this has probably been asking 500 times but I am new. I looked all over for a post and did not see an exact answer. I was looking at the ZZP site at getting a downpipe and was wondering what drop down settings to pick when I go to order it. OR if there is a better option for doing the u-bend delete since I plan on getting a cat back system soon. (Would I be better off with the downpipe with the cat for a better high flow cat.) 02' Monte Carlo 3.8 with stock exhaust so far. THANKS!
#3
if you are planning on a cat-back the zzp downpipe will be a better option. the downpipe area is the most restrictive part of the exhaust system. you should get better gas mileage which will let it pay for itself.
#5
But be aware that many of us that have the ZZP downpipe with high flow cat that haven't gotten a tune or a PCM from ZZP yet do throw codes.
#9
The code is because the O2 sensor on the car is reading after the cat. When you replace the stock cat for the high-flow the computer thinks something is wrong because the huge restriction is gone.
Even a new O2 sensor doesn't fool the computer.
Even a new O2 sensor doesn't fool the computer.