Quote Originally Posted by 1SOL2NV View Post
i would use the si tranny for more acceleration but be prepared to be shifting alot .. or like me i chose a ls tranny on my setup for gas mileage but its still fun and i dont make tons of power but its fun tho. stay below 10 psi and make sure you get it tuned.and either tranny will make you grin going down the road but i would believe a shorter gear tranny would be ideal but u will be shifting alot tho ... your choice.
His Si tranny has a 4.25fd and is the same as the EX tranny, I would go with that one.

My car I have a Gsr tranny, but would love to put the 99-00 Si 1st and 2nd in it.