Hey guys, after hearing nothing but good things about the magnaflow muffler, I've decided to purchase one. I want one that sounds fairly mild at normal cruising speeds, but really pissed-off at WOT . Can you guys give me specific part #s and tell me where is the best place to buy one online? Thanks.

BTW-this is for an '02 ext cab 5.3 Z71... I plan on having my buddy weld it in place of the stock muffler, and dumping it before the axle.

 

Get the 4inch round 14 inch long muffler it sounds so good.

 

Also, what diameter is the pipe going into the muffler?

 

The 5x8x20or14 would be a good choice as well. That would be a 3" in/out.