1999 Civic Ex Coupe
Just wondering how much HP the stock S40 (99 Civic EX) transmission can handle? Planning on getting 300whp and just wanna make sure the tranny will handle it.
The weak spot the diff all the gears are just fine. Change the diff to mfactory If you want it to be 100% or take a chance with an obx like I didDo you know where they sell transmission that will fit the d16y8 and handle 300whp? Or if there is a rebuild kit that can handle it?
Yeah itll hold 300 whp sitting in the garage.the stock tranny will take it if you dont drive like a jack ass
i however have blown 4 of 5 with 200whp lol
and to both of you, everyone on here, including myself, would not drive like a granny with 300whp...lol :wheelchair:Learn to preload the axles, that will help a lot, and not driving like an ass, lol.