Exhaust
#3
Yea, the exhaust on the '05 to current are way better then the previous years..... larger diameter piping, and less restrictions. If anything, the axleback exhaust will be up to your sound preference. If anything is gained, it will be very little, but the smile is worth it LOL!
#7
i haave looked into a roush extreme performace catback system and flowmaster american thunder catback system the roush sounded way better to me. i wass told they will do like 5 hp their way. how much will headers add? i have roush cold air intake and plan on doing sct sf3/x3 tuner, throttle body, 3.73 gears, and a exhaust.
#8
I'd get the tuner 1st since you'll need it for most of your mods. Get yourself an intake that requires a tune. Don't waste you money on a throttle body. The stocker is more than capable of handling what you want to do.
#9
i was going to get it all at the same time? i already have the roush intake so i am not about to buy another one? and i was told the throttle body would add another 15 hp plus what ever the tuner does??????