pre owned hellcat but has been tuned but by whom unknowed

[robertrooker]

2016 m6 hellcat I dont who tuned it all I can see done to the car is rear o2's gone no cats and longtube's but car runs great.If anyone see's problem with tune sure let me know thanks much appreciated

[SultanHassanMasTuning]

best to log so we can see what is going on