Forbidden Diesel - 2011 - Current GM 6.6L LML Parts & Accessories

Duramax - 2011 - Current GM 6.6L LML Parts & Accessories

By the 2011 model, the GMC Sierra and Chevy Silverado had both had their heavy-duty packages upgraded to a full box high strength steel frame for an increase in stiffness of 92 percent. Bigger springs, a larger engine mount and a hydraulic body mount were all added to offer a much smoother ride. The 6.6L V8 Duramax diesel put out 397 horses at 3000 RPMs and 765 lb-ft of torque at 1600 RPMs. At Forbidden Diesel, we carry a range of diesel performance parts for your 2011 to current GMC and Chevy truck.

We stock engine cooling system and emission system parts, as well as engine parts like belts, pulleys and tensioners. We also have cylinder heads and valvetrain parts. We have electrical parts, head studs and intake manifolds as well. Our selection of lifts and leveling kits improves your ride and takes you over rocks and hills without losing the effects of GM’s improved suspension system. We also have aftermarket programmers, chips and tuners that will help you increase your Duramax’s performance. When you need diesel truck parts, we carry a large selection and our experienced staff can find the part you need. Call us today.

Select a Sub-Category