RedLavaDriver

which one will be the best option for my first mod. i cant do both right now,so i can only pick one. if i was going to install the throttle body. would that give me a louder factory exhaust sound because it is increasing the air flow?? need good advice. thanks guys for helping out the new kid on the block

Csrt4to5.0gt

i would go with the roush axle backs because the throttle body will most likely require a tune to benefit gains of any sort. Axle backs alone don't require a tune and will give your car a much more aggressive sound along with more free flowing mufflers.

05 Mustang

welcome

I'd do the axle backs.

Derf00

Axle backs. TB on even a lightly modded car won't do anything.

96t-bird

Hi, welcome. +1 axle -back

95 BLOWN GT

exhaust.