i have a 2008 silverado with a 4.8 full k&n intake system and programmer i need to let my truck breath but i dont want it lound unless i floor it! any ideas please help thanks

 

A mufller really wont make too much of a difference with your setup but will sound halla better. I like the Borla but the Magnaflow sounds awesome!

 

Muffler is a waste, I wish I would have kept stock. 3" Cutout is the way to go IMO

 

borla or magnaflow is what u are lookin for... they are both quiet at idle and cruisin, but scream at WOT

 

the stock muffler dont sound bad on the new trucks i just want to flow better. i have searched and every one wants loud pipes1 i just want a tuff tone only when i get in it1 what do you think is the best

 

Magnaflow here, a little louder at idle and awesome when you open it up!

 

which borla or magnaflow any one got a part#

 

again, the flow isn't really going to make much of a difference on your setup. If you want better flow look at long tube headers, high-flow cats and then a muffler. The only gain you are going to get with a muffler only swap is sound.

 

this sounds dumb but will the dealer install headers so i can keep my warr?

 

no, and headers won't void your warranty....well they'd have to be the cause of the failure. So if your cats failed, no but if your AC stopped working they'd have to fix it.