aLmk's 400whp budget build

[Si Speed 317]

Thank you!

I hate that the last greddy IC pipe is 60mm, the pipe that connects to the throttle body that is. No one sells 60mm couplers.... 60mm is 2.3622'' so IDK if I should get 2.5 inch coupler or 2.25 inch coupler and IDK what size t bolt clamp to get if I did get the 2.5 inch coupler because it would be a little big...

Get 2.5" coupler, thats what mine is on the charge pipe side. IIRC the oem tb OD is 70mm, so my tb side of the coupler is 2.75". And your t-bolt would be 2.5" because thats the coupler size, they tighten down. If you'd like, you can check the t-bolt desc (or call and ask company) to find out what the t-bolt range is. They should have a range of fully loose diameter and fully tight diameter.