2015 RT Challenger Comp Cam Stage 2 HRT with 6.4 intake manifold, Borla Atak. Stainless Works Long Tubes 1 7/8.
I had Hemifever do email tunes. when it was stock, email tunes were great.
After cam, it has been hit and miss. So, eventually had it dyno tuned. Issue I still have is the surging while in drive at a stop, or trying to roll up slowly in traffic.
Haven't had it tuned after the 6.4 intake manifold install, but the guy who installed it has it set at 4800rpm for the switch in runners.
It accelerated great before, but with the 6.4 intake manifold, its accelerates faster from 40 up to 140mph.
The 6.4 intake manifold was ported to 92mm. I have an 84mm tb but I also have a 92mm Hellcat tb I might install and then have it dyno tuned again.
![](https://i.ytimg.com/vi/tUlUuENLyN4/maxresdefault.jpg)