im new here thought some of yall would understand my situation
i started noticing my truck wasnt running any faster than stock when i put on a 4inch straight pipe and a stealth 2 like 2 weeks ago....

it started running slower in stock also i took it into the deaership
and i had been told my fuel filter could be bad and the dealership said it was restricted and i got it back and they also said that everything else in the truck checked out fine...
i got it back and its still not seeming to be running right.....it feels like there is no torque at like 1600rpms..... it will not pull hard!!!!!

i cant even keep up with normal cars accelerating....

anyone have any idea what could be causing this?????

it revs without giving me all my power i dont understand if the dealership didnt catch it whats going on.

 

first we need some more info on what mods are done to your truck. the more info the better chance they could help you.

 

Any trouble codes?

 

No limp mode? it sounds like your trans is slipping if your reving up and no power...

 

it was a bad fuel filter

 

good deal, thats usually the first place to look