ok i wanna put 410's in my mustang gt or would you guys say 373's r better.i noticed this site offers a couple gear kits one with the sct tuner and one with the predator wich is the better tuner and is it easy to tune ur car with them im very new to this so anyhelp would be great

 

4.10's dude, don't fear the gear.

 

Auto or manual?

 

5 speed manual i want it to jerk ur *** when i gun it

 

4:10's are your answer! After that add a cold air intake and tuner and you'll really be happy

 

whats the best tuner

 

I'd go with an XCal2 with a custom tune from Brenspeed, or whoever.

 

how would i go bout getting the custom tune from brenspeed

 

Look into getting a custom dyno tune, if you don't have one in your area, then a mail order tune is fine. brenspeed.com.

 

great info on gears. that is next thing i am adding. i have a JLT CAI and I love it. what is stock gear in gt? and what is difference between 3.55 up to 4.56? what is better for what application? i am thinking of 4.10s also. how easy/difficult are they to change in a garage?

 

JLT CAI....how much did that make a difference? did you need to buy a flasher/tuner

m trying to figure out which CAI to go with...
can't justify paying 700 for FRPP when I am only going to get 5 or 10rwhp...

I think stock gears are a 3:55

 

just the CAI won't make much of a difference, but add a tune with it and you will see a legit 15rwhp.... Maybe even more.

rayfromtexas.....I don't think you'd need to go anymore than 4:10's unless all you do is drag race at the track. You might be able to get away with 4.56's in a 4v that has an extra 1,000rpm's, but I think that is probably too much gear for normal driving