I'm going to upgrading my GTA to a 335ci stroker, AFR heads, and a Procharger soon. Will my Tri-Y headers flow enough or should I get some fat 4-into-1's? I ask because my GTA has the C.A.R.B. stickers on my door for the Tri-Y's it has now and it would suck to change but I want to do what's right as far as getting the HP/TQ for the money I'm putting into it, I don't want the headers holding me back...

Thanks! Alex

 

On my NA 350 I made 330rwhp and 370rwtq through a 700R4. Could have made more. These are the SLP 1 5/8" tri y's. The exhaust was not the restiction. It was the intake manifold.