I got a classic question.
I'm looking at some HP gains for my 04 cavalier (ecotec). I am looking at upgrading my exhaust to 2 1/4" Magnaflow with the cat and exhaust header. I'm wondering from such and upgrade how much HP and torque increase would you get?
Thanks,
Mike
You're lookin maybe 10-15 I would believe..
depends. general rule of thumb is 10-15% for things such as intakes and exhausts. so with it putting out roughly 145-150hp, you are looking at roughly 14-15 hp.
1997 Cavalier Z24 - 15.647 @ 88.02 MPH
