Originally Posted by 93slowstang
You will produce more hp and tq with the x pipe installed. Mufflers will bring your numbers down some but not much at all.
The chip is not necessary but it will help you get more out of your mods, I don't think I would bother with it unless you have more mods done to the car.
Well I have the pulleys, intake soon exhaust, couple lil things..but thank you though.. So it wood be better straight pipe??