can anyone tell me why should a ss s/c with just CAI and header be boosting 15psi? i also have this problem that when i hit the gas at high rpms the car kinda like pauses and keeps goin then pauses again and keeps going for every gear??? idk what this can be???

 

your cat is clogged.

 

What he said. Go to ZZPerformance.com and order a new downpipe. Catless DP would be cheapest.

 

GREAT thanks. would it be good or what do u consider just deleting the cat? what do u think?

 

Just gut it take your downpipe off take a crowbar or anything really that will fit. knock all of the filter crap out. bolt it back on done

 

Deleting your cat is fine. I've ran mine cat-less for the last 3 years.

You can also do this... the cheapest option... BUT, if you wanna get a little bit of performance out of it, I'd get an aftermarket downpipe... the stocker has a few restrictive points on it.

 

do u have the same performance without the cat?

 

You'll have better performance without the cat... better flow. The cat is only there to burn off extra gas from the engine... emissions. It doesn't help the engine perform any better... in fact, it is a restriction in the exhaust... so eliminating it will help out, as I already said.

 

ok. thanks for the advise man.ill be defenately doin that asap. do you think thats probably why the car was kinda pausing at high rpms as well? cuz i did notice that the car wasent running well when it started boosting more and hearing a weird wistle like in the down pipe which was the cat.

 

Yeah... the exhaust isn't able to properly flow through because of the clogged cat, causing excessive back pressure... causing the loss of performance.

 

alright good feedback man. thanks!

 

I dont know about Florida, but here in New Hampshire, inspectors will fail you for have no cat. Just FYI

 

lol. naa here they dont even kno bout that crap lol. i mean muffler shops and car shops are aware of that but they could care less. money is more important than laws and restrictions specially when it comes to cars around here lol.

 

How many miles are on your car? I'm having a similar overboost but mine doesn't seem to affect performance at all and mine isn't bucking or anything like that. My car only has 19k miles and I have a hard time believing my cat is clogged.

 

i believe i posted on ur other threat bout that issue. my car has 57k miles already but this is my sec cat so that means am goin for the third lol. i mean it doesnt seem like ive had alot of luck with this freakin cats thing, but ive also seen many people as well that had the same issue. even tho the firt time i took it to the dealer for the cat issue they did mentioned to me that these cars were having issues with cats and that many had been repaired. and yea for mine it does affect performance specially at high rpms.

 

I figured out why mine is the way it is.. Pays if you go through the paperwork you get with the car.lol.. Good luck with yours.