2011-2022 Chevrolet/GMC 2500/3500HD RWD, 4WD 2'' Rear Block Kit TRANSMISSION 2015.5-2016 DURAMAX 6.6L LML Electronically closes off turbocharger vanes

Electronically closes off turbocharger vanes to provide engine braking

Their optics were specially developed just for use the new lineup to produce a killer beam pattern despite the affordable price point

AN HP Tuners MPVI3 and 4 Tuning Credits are required to load the tune into the vehicle

Tuning required to bypass VGT functions and codes

Fitment: 2015-2016 6

2011-2022 Chevrolet/GMC 2500/3500HD RWD, 4WD 2'' Rear Block Kit TRANSMISSION 2015.5-2016 DURAMAX 6.6L LML Electronically closes off turbocharger vanes2 inch rear lift 2 & 4WD Single rear wheel only, will not fit dually models OEM style cast iron construction Kit includes: pair of rear lift blocks Extended U bolts Necessary hardware