So i have a Magnaflow catback and id like to make my exhaust tone a little beeper, so im thinking of getting an aftermarket header but i dont want to change my downpipe cause i dont want to loose power.

Would only changing the header make ANY snociable sound difference??

 

yes, you would not loose power changing out the dp though

 

You're saying a stock dp would give more power than an aftermarket dp? Like lsj said you wont lose power changing out the dp.

Yes you would notice a little difference.

You might as well go with the ZZP combo for our cars. With the highflow cat. If your worried about speed on our cars, your in the wrong business. Most of us have realized we can make our 2.2s sound nice, look nice, and go quick.....but definately not FAST. You want fast go forced induction/Motor build.

 

well since im rollin with natural aspiration so i need backpressure and even with a highflow cat dp will loose backpressure...

 

the gmpp exhaust manifold will give it a deeper tone

 

says who

 

Which only takes away LOW-END TORQUE... but you gain TOP-END HORSEPOWER...


That's just the way the cookie crumbles.

 

thanks for the info!

 

yea i think the back pressure thing is a myth, the better a vacum the exhaust makes to push fumes out the better..i may be wrong

 

http://www.ecotecforum.com/forums/showthread.php?t=4572

Adam knows what he is talking about.

 

If you still have your stock 2.2 downpipe you won't get much HP or sound from just a header.
It's 1 7/8" with crush bends. Very Restrictive !!
Get a Header with a 2 1/4" Collector + the Stock LSJ Downpipe or fabricate custom 2 1/4" downpipe