i had my exhaust takin off yesterday and put on a cheap muffler due to it being to loud. today i was driving it and it seemed likeit had lost alot of power and i am going thru fuel like no other. id be driving along and when it hits second gear it seems to barely want to drive almost like it is dieing. it idols fine. the piping is 3 inches and the muffler i got was in/out 2 inches would that possibly be the reason it is running like crap?

its a 94 f250 with the 460

thanks

 

seemed like it ran way better when i had it off yesterday to