Looking to give your 2001-2004 LB7 Duramax a little extra power? You need the Injen Evolution EVO7008 Cold Air Intake! This bad boy is made in the USA and requires no custom tuning, so you can bolt it on and go. Plus, it's dyno proven to deliver gains of 21 HP and 43 TQ. And it comes with a limited lifetime warranty, so you can rest assured that your investment is protected. So don't wait any longer, order your Injen Evolution EVO7008 Cold Air Intake today!