Hello guys im new to all this well i have 2012 mustang gt basic mods i barely got the car i just put a roush cai and a lethall performance off road x pipe with pype bomb axlebacks so i drove this set up for a week with no probelms loud as heck but all of sudden after a week goes by now everytime i accelerate it feels like its dead i get no response from the engine what so ever its like stuck sound stuck , what can this be do you think i just need a tuner or what else can this be ? If you guys can please answer my questiom anything helps thank you !!