2001-2007 6.6L Duramax

The Duramax is a General Motors diesel engine family for light-and medium duty trucks, designed by Isuzu. The 6.6-liter Duramax is produced by DMAX, a joint venture between GM and Isuzu in Moraine, Ohio. The Duramax block and heads are poured at The Defiance GM Powertrain foundry in Defiance, Ohio. This engine was initially installed in 2001 model year Chevy and GMC trucks and has been an option since then in pickups, vans, and medium-duty trucks. In 2006, production at Moraine was reportedly limited to approximately 200,000 engines per year.[1] On May 9, 2007, DMAX announced the production of the 1,000,000th Duramax V-8 diesel at its Moraine facility.

LB7 was first introduced in 1999 and continued until mid-2004.

LLY debuted in mid-2004 and continued until the end of 2005.


Chevy/GMC Duramax CAT Fuel Filter 2001-2014

The Sinister Diesel CAT fuel filter adapter allows you to install a 2 micron CAT fuel filter without any major modifications.


EGR Valve/Cooler Delete

In a diesel, the primary function of the EGR system is to lower the amount of nitrous oxides (NOx) produced by the combustion of the diesel fuel. A portion of the engines exhaust gas is recirculated into the enine and combusted again. The problems with the EGR system arrise when the particulate being reintroduced into the engine, begins to clog the intake and EGR valve. Deleting the EGR is a popular modification that will increase the engines reliability. Tuner required.

Key Benefits:

  • Eliminates soot build up and clogged EGR Valves
  • Coolant tempatures run cooler because they are not running thru EGR Cooler
  • Hot exhaust gasses are not being re-routed back into the motor

Exhaust Manifold

Balanced exhaust flow for more power and lower EGT’s!

The factory driver’s side exhaust manifold on the 2001-2010 Chevy 6.6L Duramax engine is pinched down to allow for steering shaft clearance, which is actually not required. As a result, this serious restriction affects the driver’s side front two cylinders, flowing only 80% of what the passenger side flows causing an imbalance between the two banks and additional heat build-up.

Aftermarket exhaust manifolds that increase the internal bore size of their units compared to the port size on the cylinder head cools the exhaust inside the manifold only, but, the temperatures inside the combustion chamber is higher because of less turbo boost.

This has a negative effect on engine performance as it decreases turbo drive pressure energy and falsely lowers EGT readings. EGT is normally monitored by the driver to determine cylinder temperatures and by changing the base temperature referred to can result in engine damage. BD’s Full Bore exhaust manifold restores exhaust flow balance, improves power and reduces EGT’s inside the combustion chamber. All of which is accomplished by maintaining internal bore size thus maintaining turbo drive pressure.

Get better performance and save hundreds of dollars by using BD product versus other aftermarket manifold kits. Made from high-silicon ductile iron, the Full Bore is a direct, bolt-in replacement for the factory manifold and is even drilled and tapped to accept the most popular EGT probes.


PPE Xcelerator For Chevy/GMC

The Xcelerator line of Performance programmers for Chevy/GMC Duramax trucks represent the most powerful and reliable tuners currently available on the market! Engineered to exacting standards, all Xcelerator programmers are thoroughly tested both on the dyno and on the race track!

Typical features include:

  • Power levels range from 20HP to 225HP*
  • Up to 5 Power level tunes
  • Tire size speedometer corrections from Tire Sizes 25.00″ to 44.75″
  • Speed Limiter Adjustable from 40 to 200MPH in 1 MPH increments
  • Gear Ratio Adjustable from 2.73 to 5.13
  • Simple download into the OBD II port under the dash
  • USB side port for easy online software updates
  • 1-year warranty