with the install of a JDM Final Drive, how much are you looking difference in:

RPM at crusing the freeway?
1/4 Mile Times?
60 Foot times?

 

You may want to look at the new 05 rsx-s tranny info. It has the JDM final drive installed in it.

 

bu thats also with a heavier car and more HP... im looking for more like user-feedback on JDM FD in their cars.

 

it's an 8.5% increase in gear ratio, so add 8.5% rpm at any given speed (and conversely, subtract 8.5% from the top speed in each gear). you would cruise about 300 rpm higher at highway speeds.

I dunno about 1/4 though, I would like to know too... the only guy I know who has it hasn't beat his best time on the stock FD