Hi, as tittle says, having a b16a2 wich i bought Skunk2 tuner cams stage 1 and doubt if worth money Skunk2 (or itr) Intake manifold?
Already having PLM Toda header, 2,5” 200cell cat and 2.25” spoon N1 rep cat-back
any advice apreciated

 

A 66 or 68mm throttle body coupled with an ITR style manifold would be a good upgrade. Would likely gain about 10WHP over stock throughout the middle to top of the band, with a good tune being crucial.

 

Your catalytic will rob you the gain from a upraded intake mani