I am looking to buy a cat back exhaust. i love the stock sound, but would like it to be a little more throaty, a little louder and some more horses. any advice? and also what are these spacers I keep reading about?

 

If you want to retain the stock exhaust sound, just louder, then high flow cats will do the trick.

Spacers can refer to plenum spacers or wheel spacers.

 

Also when it comes to spacers, just search theirs 1000 posts on them. Just search up Motordyne 5/16th and read from there.

As far as exhaust goes, Calvin is right. Look up Berks HFCs, sound good, give power and don't end up all raspy and gross.

If you wanna go louder without breaking the bank you can get the HKS rip off on ebay for like $250 and it's a full catback, just don't live anywhere where you might have corrosion problems or it'll rust out quick as hell. It's called the X02 exhaust.

 

Thanks guys. I was referring to plenum spacers. Im not even sure what they are to be honest. I had a local custom exhaust place quote me $300 for aluminized cat back. What do you think?

 

Just save for the HKS(FTMFW). Trust me you will not be disappointed.

 

^ or get a used hks for less $$. Used parts are not always bad and a good way to save money.

 

It's a piece that goes between the lower and upper plenum (that gray turd underneath your engine cover) and allows air to more efficiently get to the cylinders.

http://www.motordyneengineering.com/G35.php