
Originally Posted by
stealthee
The only thing you have to really adds power is the 3.6.
The headers free up flow and may net you a few more horsepower, but they are mainly a supporting mod that helps with knock. 104 plugs don't add any power. The "CAI" doesn't add power. As previously noted you don't have a 3" dp. The headers and downpipe are one unit. Res delete doesn't add any power and only makes the car sound like sh!t. Stock mufflers are not hurting your power. If your meth injection isn't set up properly it could be killing power. And lastly 91+ octane is required anyway.
Your car wouldn't be much faster than stock anyway. Maybe her car is just healthier.