Thoroughbred Diesel has purchased a 2011 Duramax LML for test purposes. We are going to test products for horsepower and fuel economy and post the information on our site for your use. We will conduct our test on our in house Mustang Dyno.

Install/how to videos, product reviews, and more! If you own a LML this will be a great resource for you, so far we have tested a TS MP8 and a H&S XRT, check it out, we named our new 2011 LML Project Midnight:

2011 Duramax LML Dyno Runs, Install Videos, Fuel Economy, Performance Tests