Thread: 04 compG vs 99 si coupe

Originally Posted by blueguy91

I'd get whatever set of headers you want, a 180*, new plugs/wires, have someone locally tune the car with a custom tune, get a 3.6", and make an intake. "should" add about 30-40WHP and about the same amount of torque, if not a little more. It will however move the powerband up with the headers/flow so it should not only gain power but help you launch as well.

Originally Posted by Jomamma

The power band moves up right?

See above.