i just got my gsr rebuilt with ctr pistons b16 head type r manifold bearings gaskets ect. anyways i was wondering what size exhaust is hould get i was going to do straight pipe but if its a high compression motor will that make any difference on what size the exhaust piping is? let me know what to do thanks!

 

Go 2 1/2 or 2 1/4 for all-motor builds.

 

I like greddy...sounds good not too rice but yeah like civicfanatic said