The chip is a pipe dream. If you could gain instant power from something so cheap everyone would have one, and GM would have already done it. Horsepower costs money. Your Vararam gives you more power after you are up to a decent speed so you get the ram effect. The mufflers give you more noise so you think you have more power but they do not rreally increase the power. If you want more power be prepared to spend some real money on long tube headers, heads, cam, etc. Then get a real tune from a good tuner, such as Tom Wong in Vancouver, Wa.