torobull

I just installed my after market parts and let me tell you my 2004 mustang GT MT 5 Speed convertible is another beast.
Here are my mods

Diablo sport predator performance 93 tune
BBK Cold Air Intake
BBK 78mm Throttle Intake and plenum
Deleted muffler

Next in my list are underdrive pulley, can you guys tell me how many horses i'll gain from pulleys i also heard that pulleys can damage my engine, is that true?

mrtstang

If you're gonna do udp's then go with Steeda. You might free up 3-5 hp.

Do you have gears? If not i'd do those first.

crash

+1 on gears. If you thought that a throttle body and a cai made your car a beast, go get a set of 4.30's....that'll wake the beast up for sure....

Blk003GT

the udp's arn't even worth it. don't even bother. do gears instead it will make a big difference.

torobull

I just called a mechanic and I asked about doing gears 4.10 and he will charge me $650, include the gears, oil, labor and anything alse i may need, do you think is a good price?

SyNdicateZ

I gained 9 HP just from my steeda pullies on a before and after dyno pulls. I personally recomend Steeda UDP's..

kugzgt

650 isnt bad for shop price seems normal

PurpleIcedGT

650 is an easy three numbers that spell RAPE. Waaaaaaaaaay to much.

AYEOH5.0

Get a quote from a off-road type shop. They do gears more regularly and will normally charge less.

Soldier GT

I'm usually not the bad guy but with the OP mods he gained what 8-15 hp? I mean, we all know 2V's don't respond well to bolt on's (gears yes, but bolt on's, no). OP once you install the gears (I would vote on 410's) you will really see a difference in your car. You're off to a good start though. Good luck man...