Im starting to smell rotten eggs when i accelerate hard or go up hills? Also i need to get it inspected in two weeks, will i be able to pass b4 i get it fixed?

 

is your exhuast stock? If so, you have pre-cats in there as well, and there is a good chance you'll still pass, even if your main cat is a bit iffy. As far as how much they run, you can get a decent high-flow cat for $80-100, and a muffler shop could probably put it on relatively cheaply.

 

yeah i have a stock exhaust..for now. Any performance gains with a high flow cat compaired to stock?

 

Nope. 1hp if you're lucky and even then, that can be attributed to dyno error.

~THT

 

oh ok kool thanx

 

However, while you are at the muffler shop, get them to custom bend you some 2.5" piping from the cat back to the muffler. If you don't take off the stock resonator, you will not really make it any louder, but you should gain like 5hp (give or take 1 or so) from the larger pipe.
Then, when you put on your y-pipe, it can flow more freely.
They should be able to do all of this for like $50 or so.
I did.

 

Where should i buy one?

 

So a new pipe and leave the resonator and you get 5hp? Or take off the resonator to get 5hp?

 

why is there such a high price difference from nissan cat.? they go for like $600-$800....10X

 

OEM parts from dealers cost have nice markups on them. Thats why. As for the answer to this question you should be able to get a good after market from your local mufflershop for around 100 or so.

Ps. You should read the forum stickies and previous pages you will always find the answers you need cause they are asked 10 times a month.

Good luck
Proph

 

ROFL ! im glad im not the only one. i passed my smog test about the same time my car started to stink