What diameter piping should i get for my Carberated NA? There is a borla system with 2 inch. Would that be too small if I were to run a small nitrous kit? What is the stock piping size? And what sizes would maximize flow and velocity for NA and for Nitrous? Thanks,
Chris

 

On an N/A, 2.5" is probably the bifggest you would want to go.

Bigger than that you loose torque.