Having a good set of gauges is one of the most critical items that an owner of any turbo diesel should have, and your 2006-07 6.6L LLY/LBZ GM Duramax is no exception. Whether you're towing a stock trailer or racing down the quarter mile, having the ability to monitor vital engine statistics is extremely crucial. We carry a full line of analog gauges from ISSPRO and Autometer, and for those that prefer a digital inte...