I have a 2002 WRX and was wondering about the performance differences between the stock gears and RA ones? I plan on keeping the stock 5th gear as most of my miles are on the highway, but what kinda mileage drop should I expect in street driving? What kind of acceleration gains?

 

i got the ra setup its pretty quick. mpg didnt drop 2much. i think theres another sti gear set like the ra but its not the ra and has better 4-5 gear cruzing

 

are RA gears stronger than stock? or just a better (acceleration) gear ratio?

 

stronger and shorter ratios