what will be the gain in hp and torque of a full 2inch1/4 exhaust line and a header on a ecotec engine.
can i figure to do a better 1/4 miles time.
and i dont really know if i should choose a 2 1/4 or 2/12 inch exhaust line.
what will be the best .
all advice are welcome.
I know I took off .5 off the 1/4 mile time with my header (RK) but as for the pipeing I'm running oem, uni muff, and no resinator and noticed vary little difference but as for hp #'s ???
Quote: no ofence man but if you have so much experience in all that why does your car look like crap?
I haven't installed my header yet, but I do have a 2 1/4" cat-back---that definitely made a difference along with my intake.
From what I have read, 2 1/4" exhaust is best for the ECO if you are not going turbo.
