Upgrading to a 5 inch exhaust for 06 duramax
If you're looking to get more out of your truck, installing a 5 inch exhaust for 06 duramax is probably one of the first mods you should consider. It isn't just about making the truck louder—though that's definitely a nice perk—it's about letting that LBZ engine breathe the way it was meant to. The 2006 model year is widely considered the "holy grail" of Duramax trucks, and choking it down with a restrictive factory pipe just feels wrong. ...