Getting New Tb Or Porting Old

[battistoni21]

I'm going to be running a borla cat back, magnaflow cat converter, aem wai(soon to be cai), rsm intake manifold, tps tech, and pacesetter headers..... what would be better to do, port my current TB to perfectly match my intake manifold, or get one made my rsm? i know that the rsm would be much more money, but im worried about what would work better to get the best air flow

[Oldsman]

have a shop open up your stock one to 56mm.

the RSM is just too expensive and also the 62mm is more like 60-61mm and is bored off center due to wall thickness.

[battistoni21]

thanks oldsman.... you da man!