I will be installing my turbo kit in the next couple weeks and need to order the coupler that gose from the IC piping to the throttle body. I know the TB is 60mm (2.36") I can't find a reducer that gose from 2.5 to 2.36
any help would be great...

 

i believe you want a 2.75" on the TB side. so if you have 2.5" piping a 2.5->2.75" coupler

 

Can anybody confrim this...I am getting ready to order the clamp and couplers..

 

im pretty sure a 2.5" coupler will fit over a stock B18 TB

actually im 100% sure of it.....2.5 to 2.5 will work perfectly fine.

 

OK so what is the correct answer, 2.5 or 2.75?????

 

well i just checked the extra throttle body i have, and it's 2.6" in diamiter. the 2.5" coupler would not strech to fit it. if yours is 2.3", the 2.5 should fit but you know what, just to be sure, and to have spares for later, just get both. i have tons of spares, works out great at the track and dyno.
or just drive down to a place that has fittings and try a few on for size.