Challenger Performance Mods - Engine - 5.7L HEMI
Hey,
I want to upgrade my transmission but haven't seen anything for a '15 Challenger RT auto. I have a P-series ProCharger, forged internals, upgraded fuel injectors, long tube headers, Hellcat LSD and axles, 87mm throttle body. I'm getting about 515rwhp, shop told me that my tranny could only...