Originally Posted by FLATOUT
We'll see I will have it on the dyno before too long and thats the same build I have done. The Gen V Manifold help in a big way through the mid range. I picked up 30ftlbs through the middle of the power band so I am interested to see how these headers and catback compare to the American Racing Headers I had on before.
I will dyno this setup and the only thing left to do will be porting the stock heads.
My gut feeling with the mods that you are doing, at this point, your going to see more power from a tune than porting heads. But the gen4 Viper is at that sucks stage because it can't be tuned unless you go full standalone.
Also. Upgrade your TB's. the Pentstar V6 is 10mm bigger and uses the same bolt pattern. Dan Lesser said that nothing could be done. But. Whatever. It just needs an adaptor harness. Made by the same mfg as the Viper TB.
I suspect the gain would be about the same as TB upgrades in the past 3-10rwhp range. I would hope it would do more with the higher rpm and better flowing stock heads.