I was thinking of getting an Si transmission for my 88 CRX DX for the close gears, will it bolt right on. Also will it make any or little difference in acceleration. Thanks guys

 

You will need an 88 trans unless you upgrade to a newer clutch like the 90-91. The 88's had a different number of splines than the newer ones. It will give you better acceleration because of the different final drive.

 

Thanks, I would have gotten a new clutch so I shoud get the 90-91 trans better

 

One more question, which mod would give me the most performance in my D15B2, the si trans or change from DPFI to MPFI

 

no doubt dpfi to mpfi

 

yep, the mpfi conversion is the single best thing you can do to a DX. check my sig, i should know.

 

DX-R with your MPFI are u able to hang with stock Si's, when I mean Si Im saying 4g Civics and CRX

 

Just make sure you get a 1989 clutch kit if you do use a 1990-1991 transmission.

 

the d15 will beat a si stock that is with the si tranny the stock sis ran 16s and if u do get a 90-91 clutch u need the flywheel from a 90-91 they are bigger

 

Thanks everyone