DURAMAX

  If you are wanting to keep your 6.6L Duramax on the road for the long haul, you need to replace your head bolts with upgraded head studs.

DESCRIPTION The MBRP GM8427 3" Downpipe helps your 2011-2015 6.6L LML breath by increasing the exhaust flow off your turbocharger. Removing the res...

DESCRIPTION The MBRP GM8424 3" Downpipe helps your 2004.5-2010 6.6L LBZ/LBZ/LMM breathe by increasing the exhaust flow that comes off your turbocha...

DESCRIPTION Our high flow performance exhaust systems maximize exhaust flow so your engine keeps its cool with lower exhaust temperatures. Your rew...

 DESCRIPTION Maximize performance in your race built 2001-2007 GM Duramax 6.6L with the MBRP S6004PLM 4" PL Series Downpipe Back Exhaust System. ...

 Description S&B cold air intakes are engineered to minimize air restriction and increase air flow far better than your stock system. Our inta...

 Description Maximum Performance Our cold air intake for the 2017-2019 Silverado / Sierra Duramax 6.6L was engineered to minimize air restriction ...

 Description S&B cold air intakes are engineered to minimize air restriction and increase air flow far better than your stock system. Our inta...

 Description S&B cold air intakes are engineered to minimize air restriction and increase air flow far better than your stock system. Our inta...

  WARNING! This system is designed for the 2017-2019 L5P Duramax WITH AFTERMARKET TUNING!! If the truck is not equipped with an aftermarket tune an...

  A FASS Fuel Systems can be a beneficial upgrade for your GM Duramax LML diesel engine, this is because your Duramax doesn’t come with a factory l...

  A FASS Fuel Systems can be a beneficial upgrade for your GM Duramax LML diesel engine, this is because your Duramax doesn’t come with a factory l...

Description Once you’ve installed an aftermarket Fuel Filtration System such as our FASS Titanium Series, the use of the factory fuel filter is no ...

Description A FASS Fuel Systems can be a beneficial upgrade for your GM Duramax 6.6L diesel engine, this is because your Duramax doesn’t come with ...

 DESCRIPTION S&B cold air intakes are engineered to minimize air restriction and increase air flow far better than your stock system. Our int...

Description S&B cold air intakes are engineered to minimize air restriction and increase air flow far better than your stock system. Our intake...

Description S&B cold air intakes are engineered to minimize air restriction and increase air flow far better than your stock system. Our intake...

 Description HPTuners Transmission Tuning for your 2017-2023 L5P Duramax You must have an unlocked T87 or T93 TCM to load custom tuning.

 Description Engine Tuning file only.  An HP Tuners Unlocked PCM or HP Tuners Unlock Cable and MPVI3 are required to load tuning. CAN Bus Plugs Ar...

 Description Improve the drivability and power handling of your 68RFE transmission with increased line pressures, adjusted shift points and conver...