Wouldn't be my reccomendation to go without a cat Again little gain for much work.

I don't want to quote the best HP gain of any particular exhaust but I think 10 - 15 HP would be about it. Look towards a single setup.

Do a search on "test pipe" and you should run into info on the CEL issue.



Actually after thinking about it you might specify what you are trying to get done here..

HP at top pf RPM. Mid?Low?
What do you consider "big difference"??
Are you tracking the car? Saving weight?

 

I would like to get all around HP ... im not looking to quarter the car or autoX the car, just want something with some good powers gains all over and has some balls for sound.

 

ok

then is 10 HP good to you?

Have you looked at your options??

Budget?

Single? Dual?

Round canisters? Oval canisters?

Wish I had time to search for the thread that has a link to an entire page dedicated to the options available to you, but if you look you will find it

 

10 HP is good!

Budget ... not really but would like to stay under $1,000 if possible

I would perfer single

Round Canister

THANKS FOR ALL YOUR HELP ninegrand!

 

No prob

Well now start searching and looking into the singles that appeal to you.

Spugen will give great value and service

Just so ya know when the mods catch this it will get locked or moved. Not really "Under the Hood" topic.

 

If you are looking for 10+ hp you definately want to look at a single exhaust. It will also save you the most weight. The best (real) hp gains I have seen on duals is about 3-4 hp. There are many titanium exhausts out there, that will really save you a lot of weight, from stock, but they are $$$. Check www.bulletproofautomotive.com. they have a good selection & description of many of the exhausts.