[nails79]

if your engine is stock it cant rev as fast, but i would say the off road x pipe with no cats is killing your low end power, the cats will definitely help your performance on a stock or slightly modded engine

 

[nails79]

i installed the g-force synchr t5 in my car, the first four gears are about the same as stock ratios however 5th gear is a .59 great for the highway. with 373's and 275/50/15 at 75mph i am under 2500rpm, cant get much better than that

 

[nails79]

http://www.g-forcetransmissions.com/tran_gt-5.asp

check out their website it will give you all the info you need. you can send them your tranny and they will install the gears, or you can order a complete tranny from them, or you can get the gear set and install it yourself. the synchro t5 what i have from them is good for 600hp. the tranny is great, blows tremec away, ive had bad experiences with tremec, gave these guys a shot and i am not dissapointed. your gonna pay a bit more than a tremec but its worth it.