Originally Posted by rachitparikh200
sorry but i want to disagree. The purpose of an after-market exhaust system is to increase power and torque. i know for a fact that most of the horsepower is generated in the headers. the bigger the air flow the more power there is...
And it will, but you will barely notice it. The power increase will likely be around 10hp at the wheels, you'll lose your low end torque, gain some high end, and it'll probably sound great.
I'm not saying you won't gain anything, I'm saying you won't gain much.
Search around here... there are a ton of threads discussing exhausts, headers, and backpressure and such.