yea i will replace those also.

but if i have a shop do my plenum, i doubt they will fix it if i bring them the parts...they will probably want to buy the parts themselves.

 

hey i got my truck tuned up, new selenoids put in, and a new torque converter, it definatly runs better. i need your guys opinion on exhaust. im getting a new exhaust system tommorow. i got a magnaflow cat. what should i run after the cat? no muffler with duals after the cat? dual glasspacks after the cat? it has one glass pack on it now after the stock cat, but its quiet... i want it to be louder and more crisp sounding

 

Go with Magnaflow, sounds great, lifetime warranty.

 

If a shop refuses to use parts you provide, when they are the correct parts, find another shop. The only reason they would want to get their own parts is to put some extra margin (profit) on top of the regular price, and charge you for it.

A Magnaflow cat will definitely make it louder and perform a bit better. Pull up some clips on Youtube of Magnaflow mufflers on our trucks, glasspacks, and Flowmasters (and any others you think you may like). See which you like the sound of, and get that.