i have been lookin for a crank under drive pulley .. i broke mine.. but do they make any for the d15 i have looked and only see d16 anybody know anything about them and where i can get them for cheap.. and do underdrive pulley really worth the money for the hp gain or should i just slap on a stock oem one thanks

 

underdrive pulleys are only good at two things, prematurely wearing out main bearings, and shattering oil pump gears. go back with a stocker

 

I got one if you need it.