I think I'm goin to purchase the gear/tuner combo and a cat-back. Hopefully that will get me into the high 13's, but if it doesn't I can always throw on a couple more bolt-ons. Also is it true that these cars don't really benefit from a CAI?

Yes it is, the only reason to really buy it is for looks, some people say it increases throttle response though, but I never had one so idk

JMJ4492,

Good choice! This Bama/gear package is a great stepping stone for modding your '04 GT. You'll absolutely see a significant change in your Mustangs acceleration with that setup and 4.10s.

Also, CAI's will gain you some extra hp/tq and a slight increase of mpg, too! We also did a Bolt-on Build-up video with our 2000 GT, if you're looking for more ideas. Check it out!

https://www.youtube.com/watch?v=V-GX...ure=plpp_video

Shane

Also I plan on getting a 5 speed with I still notice a big difference with the 4.10s or is it the auto that really benefits from them? Do you guys think cat-back and the gears/bama tunes will get me into the high 13's with good tires? P.S thanks for all the info guys you all have been a great help!

Love the NEW EDGE Mustangs. Especially when dropped and individualized. Mach1s and Cobras I'd leave alone. They look rare, and COOL enough already. Both of ours have been reliable since day one. I'm not saying nothing will happen, but only had to put Batteries, Tires and Brakes so far. That makes me happy. Since it's been 10 years and counting. Of course, I've done all kinds of upgrades to the '03 GT though. Mostly cosmetic. Yes, I do notice a diffence with the CAI. But not at ALL rpm ranges. Mostly the middle to upper end. But it is there. Also, cosmetically it does look good. Espesially the BBK, with a Trick Flow or BBK Upper Plenum.

Don't bother with the cooled air intake unless you are going for looks within the engine bay.

JMJ4492,

Yes of course! You'll definitely notice a drastic difference with 4.10s and a Bama tune! Try a quick search on the forum. You'll see a ton of 5spd guys that were thrilled with the results after gearing their Mustangs!

Shane

Sorry guys one more question what would be a good power adder to bolt on the stang the will respond well with a bama tune?