well after reading all the articles about this, and everyones opinion on it, i finally decided to do this mod, and did it over the weekend, and man am i dissapointed. i mean i read everyone saying things like they can spin tire from a dead stop, and going from 1-2, 2-3 and whatever, but i dont spin tire at all, not any gear, not from a dead stop, nothing, granted, i didnt really much low end, its all up top, and i do have an exhaust leak at the header/downpipe area, but really for real i hardly noticed any difference at all, at most it maybe gets to 20 quicker, but thats it.

it still shifts first at 40, then 2nd at 60 which is sad i think, it should be higher...i mean i did everything the article said to do, made sure my gears were 47/49, and the ones i bought were 46/50, and put a tranny cooler in as well, but it just seems like it didnt do anything really for real...has anyone else had this same problem, or has most people actually felt a difference, and can spin tire or keep up with manuals as some claim?

my best investment was the auto to manual conversion =) only way your gonna get a good feeling about the car.

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97 RS-T, STAR Stage 2, HAHN FMIC, Decah Lambo Doors, 19" Axis Hiros, Built 420a - SOLD
2004 - G35 6MT 20" HREs & Tein Flex
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No matter what gears you have, you still have a 140hp engine coupled to a ~30% loss transmission from a minivan, in a car that weighs 2900lbs.

Anyone spinning tires with an automatic either has a turbo or is driving on ice covered by a large oil spill.

The specs for the final drive mod improvement were posted years ago, and my pics are still hosted.
http://forums.2gnt.com/dcboard.php?az=show_topic&forum=33&topic_id=2361&mesg_id=2361&listing_type=search

My results were: 0.57 seconds quicker 1/8 mile, 2mph faster.
This would probably translate to a 1+ second improvement and 4-5mph gain in a 1/4 mile. Hardly life-changing.

.5 seconds is definately worth $100 and a half day of work. It's still a slow turd, but a half second faster slow turd!

Final Drive mod and TQ red. mod gained me about .8 seconds at the track (shifting vs. leaving it in drive) That's significant enough.

Just don't go expecting improvments to come in leaps and bounds on these cars, it doesn't work that way.

Representing the Central Cali chapter of 2GNT!
(I think I'm the only member )

.5 seconds in the 1/8th mile is a HUGE difference...
1 second in the 1/4 mile is a HUGE difference

I could spend 1000 bucks in bolt ons and never see that much difference..

moral to this story is the final drive mod IS easily worth the 100 bucks you spent..

1998 dodge avenger 4 cyl AT
Mods are:
Not enough

well your right, that would be worth it, if it actually felt like i gained that much, but it doesnt. it seems like i have no high-end power now, like once i hit 50, it takes forever for the car to go anywhere, and i just hit 60 at the end of 2nd gear, someone posted his speed difference on here after doing FD and said his 2nd gear got him to 72, how in the hell is he getting 12 mph more than me after doing this and im not???

What other transmission mods do you have and what size tires are you running?

Representing the Central Cali chapter of 2GNT!
(I think I'm the only member )

just final drive with a tranny cooler. and i run 215/45r17 sonars, on nippon lite-star rims, they weight 13-14lbs each

Touche, 16 sec is still dreadfully slow.

BTW, you didn't just pull on that MTX, you gained several car lengths on him, makes me want to go turbo now, and that was 5psi?

Representing the Central Cali chapter of 2GNT!
(I think I'm the only member )