DSMissed

Alright, so I got my AEM intake on, and I ordered my stage 2 today, and have an appointment to have it installed next Friday.
So I have a question. I'm thinking about exhaust, but I saw that the GM cat-back is only a 15 hp gain, and it costs about $400 plus the install money. And the manifold is somewhere around $350.

So for those of you that have cat-back and/or a manifold...is it worth the money? How are the gains? I wanna get some feedback before I make a decision.

Johnboy12358

The exhaust is worth the money. Look into crateenginedepot to buy it if you want to save some cash, and definitely install it yourself. It is a very easy installation. About the manifold, I dont know, I dont have it, but probably will (and I'll install it too)
www.crateenginedepot.com also sells the manifold for under $300

MacG321

i have a borla cat-back which is the same as the gmpp and i think you'd be lucky to see 10. someone knows for sure i bet....

Johnboy12358

I thought I have seen a dyno that showed 12?

DSMissed

crateenginedepot says the GM cat-back gives you 12, but I bet it is more if you have stage 2 and an intake. So Johnboy, did you get the exhaust after the stage and cai? What kind of gains did you feel? More torque-ish? More power higher or lower in the rpm band?
And your ingalls...do you think it helped alot with your mods? I don't plan on launching the car...

Yeah, I was getting prices from crate engine, thats where I got my stage 2

Hey, and another question...does installing cat-back yourself void warranty? Cause I will if it doesn't

Johnboy12358

It wont void your warranty for the car. IIRC, you get 12 months 12,000 miles if you install it yourself (on the exhaust itself).

I installed in this order: exhaust, stage2, ingalls, intake. The car felt a bit faster, a little torque, but the engine felt like it revved alot more freely. Plus the sound of this system is perfect.

I do think the ingalls will benefit you, makes shifts a little smoother, and also makes sure you dont wheelhop (too much wheelhop can crack your tranny!) I dont do drag racing, but I like it, just makes everything a little more secure and feel a little sportier.

If you want to hear my setup, click the link "went to the dyno" in my sig, it sounds pretty bad ass if I say so myself. Also, take a look at my dyno sheet (link is the dyno numbers) for comparison