stauber32

WOOWWWWW!!!! SHOOTING MYSELF RIGHT NOW!
They removed both cats 30 mins, and i have the h pipe with flowmaster 40s on.... It sounds louder and a bit weird, but when i push the gas peddle past 1/4 to give it some gas, it sounds like a go cart!!!
Already ordered new high flow cats. Ive never heard a car sound this bad.

BabyGT

Wow, not sure what to tell ya on that one bud, you have seen my pics, here's a sound clip of mine, I did a voice memo of my car and just dubbed it over some pics.

stauber32

i just bought some new cats because im so embarrassed to drive my car right now. Just 2 high flow cats magnaflow universal. but, i had the 02 sensors attached to the back cats for some reason?

BabyGT

If I remember correctly the back o2 sensors were behind the second cats? An the shop welded bungs for them right behind the front cats? Either way two sensors before and two after. Other than that I don't know what to tell you on the exhaust other than mufflers making a difference I guess.

Ironhandx

I don't know what to tell you either.... tbh though I've never seen that done without new headers so that could be causing it.

I've got flowmaster Force IIs on and it sounds great. It doesn't grumble like a V8 past 4k or so but its still pretty loud, deep, and throaty.

BabyGT

I know for a fact it's not the stock manifolds causing it because I'm still running stock manifolds.

BabyGT

What diameter pipe are you both running?

stauber32

im running the 2 1/4. and yeah @babygt the back 02s were in the back cat, the front 02s were in front of the 4 cats. I guess he could have done what you just said but he told me that it was going to set of the light anyways. which reminds me, i still dont have any lights on?

Ironhandx

2.5" everywhere except headers. 1 5/8" coming out of the headers.

BabyGT

Hmm, mine is stock diameter, also I talked to the shop, and checked some diagrams, my second sensors were behind second cats, the welded new bungs and kept them right behind first cats. As long as you have a sensor before and after each at your fine. You should see no lights.