I just saved up enough cash for an exhaust system for my IROC so here is what I'm going with: Shorty edelbrock headers(1 5/8?), offroad y-pipe, 3' flowmaster catback. What do you guys think? I know I won't gain a lot of horsepower from it. I'm getting the exhaust because A) I want my car to sound good B) Exhaust is always the second mod I do, the first being CAI. So does it sound like a good set-up??? Would having no cats cause any problems or make me lose HP? If so I'll rework the set-up. Thanks for the input

 

Honestly I would say save maybe a few bucks more and get some hedmans dude. THe edelbrocks have a crappy design and they clamp down on the primaries where the all come together at the collector. The y-pipe does the same. Any other brand, hooker, hedman, slp.... do not do this.

As far as power, you will definitely gain a bit. You might not feel it, but assuming your car is stock now, I would bet it will pull harder and you'll be able to tell a difference. But trust me, if you are going to go through the trouble of installing headers, you might as well do it once and put some in there that you will really be happy with. I say try the hedmans or hookers, since slp's might be a little on the high side of things.

Will

 

i agree...

and while you're under there, thow a cutout on it...just for ****s and giggles!

 

Plutonium,
What was your first mod again? CAI? What does that stand for? I have a similar posting to you going on debating the usage of shorty vs. long-tube headers. This is my first real mod, aside from removing AIR sytem. I'm just curious what CAI is and if I should do it next.

Jeff

 

Cold Air Intake

 

Expensive, but a better setup. 1 3/4 SLP SS Headers, 3" in & out Catco Cat and 3" SLP SS Catback exhaust out 2 1/2" oullets on the left side. All Stainless Steel.

 

I WILL change the headers from edelbrock to headman, but everything else is staying the same. I'm still gonna go with flowmaster catback. But what about the Offroad Y-Pipe. Would I gain power if I used a I high-flow cat or should I go cat-less???

 

I bought a $200 Catco hi-flow 3" race-cat. If you buy something like that, then there should be little to no power loss.

 

magna flow an dflow master both have high flow cats that will take little to nothing away from your enginge.

 

im running a flowmaster with no cat.. but i still have stock headers.. sounds good.. might wanna check with ur local laws..

 

Local laws can blow me. I'm all about noise and pollution. Just wanted to know if I'd lose any power getting rid of the cat

 

By getting rid of your *stock* cat, yes, there is a TON of power to be made. If you get an aftermarket hi-flow race cat, there will be little to no power-loss w/ one. Here in NY, you NEED a cat in order for any muffler shop to even *look* at fixing your exhaust, so I said "F*ck it".. they wanna be gay f*ckers like that, then I will get a race-cat which is more or less a fat-pipe designed to *look* like it does something