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Really depends on the rest of the system. Is there an aftermarket exhaust? engine mods?
If nothing else was done... 5-10 hp. If there's a good exhaust.. 10-20hp
The only way to tell if you have an Xpipe is to look under your car at the pipes. Looking at the back only identifies the cat-back system which yields minimal if any gains.
Here.. stole this from another thread. Its a nice pic of a X pipe. A stock pipe looks like an "H" in that same area. BTW, please go back to the dealer and SHOOT the dumb sob who put the dealer tag on your car.
Last edited by Todd157k; Jul 21, 2008 at 05:00 PM.
Vortex claims 22hp increase and that is without the ram-air affect. I think they claim a .3 second increase in the quarter mile. I also have one, and I like it.
Not bad. Is that combined with my exhaust? Or is that 10-13 just from the intake? I read my magnaflow is about the 10-15 as well.
All of those "ratings" are just theory. The only way to know what you have at the rear wheels, is to put the car on a dyno. Never had my car on one, and I'd rather save the few hundred bucks for some fun.Me, I don't really give a crap, as long as I can smoke the tires if I feel like it, and keep up with all the wacos on the NE runs. I do, so it's all good.What else do you need to know, as long as you like the way your car runs, and it's fun? Really, numbers shouldn't matter that much, so don't get all caught up in that, unless you're that picky.There are so many mods you can do, but someone else will always have a better dyno run if they have more money to blow on their car.The point is to just drive it and have fun.
Last edited by Ralphyboy; Jul 22, 2008 at 09:33 PM.
Not bad. Is that combined with my exhaust? Or is that 10-13 just from the intake? I read my magnaflow is about the 10-15 as well.
Maybe, but you don't add the numbers from manufacturer claims for each mod together. That is known as "ricer math".
My intake manufacturer claimed 15 hp and the exhaust 22 hp. It did not gain 37 hp... and I suspect it is actually closer to 10 rwhp with both of them combined... if that IMO
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.
Those items plus the red cover over the battery. 
