So im boosting my car. i have the intercooler already, and im gonna order the piping soon.

the intercooler has 2.75" inlet/outlet.

my question is, with the spoolinperformance intercooler piping kit, what couplers will i need?

heres a link to the Piping kit. its 2.5" and 2". http://www.spoolinperformance.com/94...ing-p-587.html

If im correct, i assume ill need 2 2.5" straight collectors, 1 2.75"-2.5" reducer, 2 2" straight, and a 2.75"-2" reducer.

 

i hade some 5 layer couplers with the same issue as you 2.75-2.50, i couldnt find any reducers so i just dremeled a layer off the inside and it stretched over the bigger pipe. Im not sure how much your boosting but it worked fine while i was at 9lbs or less. Im not saying its the right thing to do but it will get you by while you conteplate everything lol