Ive been haveing problems with hesitation at higher rpms like timeing being pulled, for 3 months my mods were an AEM CAI, Turbo XS MBC (17lbs.), and TUrbo XS BOV, Then for some reason I tried to be like the SRT-4's that run around here. What they do is run stock open dp. So I unbolted the mid pipe from the cat back section. So it ran great for 3 months then all of a sudden this. Out of all of that do you think if i return the car to stock exhaust it will run fine again? Ive tried the mbc that didnt fix nor the cai I really have now clue im used to american cars.