11-16 6.6L LML

The CP4 Pump on the LML model Duramax is prone to failure if the fuel system has any water or contaminated fuel introduced to it. When the pump fails, it will send metal contaminants throughout the entire fuel system which in most cases will ruin the...

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 lift pump like other types of diesel. This requires your CP3 injection pump to pull your fuel under a...

The Titanium Series diesel fuel pumps are the superior fuel pump and filtration system, in the diesel industry. This is because here at FASS Fuel Systems we focus on perfecting our pumps and how they are engineered, taking the extra steps that our...

This Allison 1000 is built in house to the highest of standards and includes a Goerend triple disc billet torque converter. All of our Allisons are built the same (clutch pack stackup) whether you're looking for a 1000+RWHP truck or you're looking for a...

If you're looking for the best for your truck, look no further. The Ultimate Front End Kit includes every moving component of your steering. This kit is hands down the strongest option for any GM Heavy Duty Truck. Fully capable of handling high...

AirDog II-4G is designed to operate at flows and pressures beyond the maximum requirements of the engine. It receives fuel under vacuum from the fuel tank containing entrained air/vapor, particulate contaminates, and unknown quantities of water...

ARP Pro Series cylinder head studs are cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining. ARP Pro Series kits are also available with 12-point nuts, and all kits come complete with hardened parallel...

This LML Disaster Repair Kit is everything you will need to repair your LML fuel system in the event of catastrophic fuel system failure. If you have had a CP4 failure, this is the kit you need!

The All-New Patented Banks Ram-Air Differential Cover WIPES OUT THE COMPETITION!When it comes to product development, we only make products that increase performance and beat the competition. So when we tested the popular Diff Covers on the market, we...

PPE has taken OEM replacement to a new level. These PPE OEM Up-Pipes allow 53% greater flow than stock. PPE OEM Up-Pipes is a direct bolt-on to your factory manifolds. Unlike factory parts, PPE OEM Up-Pipe is manufactured from 11 gauge 304 stainless...

DRP's design addresses being able to place a return sump under the factory sending unit in the tank. This is the sweet spot for all fuel levels. Having it forward or in the back of the sending unit can cause issues with low fuel during those rowdy...

The PowerFlo lift pump is the latest OEM replacement performance lift pump from the diesel experts at Fleece Performance. The PowerFlo is the only in-tank lift pump capable of supporting up to 800 hp! The LML when delivered from the factory relies on...

Kryptonite leveling kits are the fastest, safest, least expensive way to bring the front of your GM HD Truck 2 inches closer to the rear. Our torsion keys are designed to grab the FLAT of the torsion bar for a tighter, sturdier fit. Kryptonite torsion...

Shackle kits are designed to lower the rear of your vehicle depending on the application and maintain the OEM ride quality. The shackles are made from high strength steel which is powder coated and has silent rubber bushings to ensure a perfect fit and...

Merchant Automotive makes it easy to place just a single order and get everything you need to overhaul your 2011-2016 LML Duramax diesel engine. This will save you time and frustration.   The kit features optional ARP Head Studs to improve...

Engineered exclusively for the extreme demands of today's heavy duty truck. Built with pride in the USA to work with stock or modified suspension. Kryptonite tie rods will fit any 2011- Current 2500/3500 GM HD Truck that has the center link mounted in...

Compressor Specs: - 63.5mm compressor wheel inducer 66lbs/min - 5" Hose inlet 4.21 V Band Outlet Compressor Cover Turbine Specs: - 74.3mm turbine wheel exducer - 1.10 A/R Twin Scroll T6 Turbine Housing 5.75 Marmon Outlet

Zone 5" Basic lift kits offer superior quality at affordable prices. Adding a Zone suspension lift gives your truck a taller, more aggressive stance and allows you to add larger tires. Constructed with the best materials, Zone lift kits feature Zone...

Most of the play in the steering system on Heavy Duty GM Trucks are on the Idler side, this package will decrease play in the Idler side and solidify your steering feel. This combination of parts will bulletproof your idler side steering. The Kryptonite...

No Tuning Needed Our CP3 Conversion Kit is a direct replacement for the factory CP4 and will not cause check engine lights. No need to spend extra money on custom tuning or programmers, our kit works with the factory tuning.  ...

Breathe easy. Your engine & warranty are protected. - Add power and fun while still protecting your investment. ISO 5011 Filtration Testing. - A mountain of dust and our 1/2 million dollar lab is how far we've gone to make sure your...

Make your diesel more efficient and fun to drive with our Chevy/GMC Duramax 6.6L Stealth Performance Module exclusively for Chevy/GMC Duramax 6.6L years 2011-2016. Your module will be a stand-alone computer that simply plugs in under the hood of...

AirDog® II-4G is designed to operate at flows and pressures beyond the maximum requirements of the engine. It receives fuel under vacuum from the fuel tank containing entrained air/vapor, particulate contaminates and unknown quantities of water...

DRP's design addresses being able to place a return sump under the factory sending unit in the tank. This is the sweet spot for all fuel levels. Having it forward or in the back of the sending unit can cause issues with low fuel during those rowdy...

The Duramax Tuner 64VVTLML Stealth 64 Drop-in Turbocharger for your 2011-2016 GM 6.6L Duramax LML is a must-have upgrade! It's called the Stealth 64 for a reason. Like its namesake bomber, the Stealth goes completely unnoticed until it's too late. The...

SunCoast Allison 1000 torque converters come in many varieties, from heavy hauling, sled pulling, drag racing, to daily driving. SunCoast designs and manufactures their torque converters in-house. Because of this, SunCoast can supply most any request in...

With our background in OE development and manufacturing, we bring a unique perspective to the high-performance world. We know what features and specifications need to be to ensure proper function, we know how to produce them and how to verify they are...

Engineered exclusively for the extreme demands of today's heavy duty truck. Built with pride in the USA to work with stock or modified suspension. Kryptonite tie rods will fit any 2011- Current 2500/3500 GM HD Truck that has the center link mounted in...

With our background in OE development and manufacturing, we bring a unique perspective to the high-performance world. We know what features and specifications need to be to ensure proper function, we know how to produce them and how to verify they are...

The Edge Products 85300 Evolution CS2 for your GM Duramax, Ford Powerstroke & Dodge Cummins is an all-in-one performance programmer and gauge display. From the company that was first to introduce the in-cab digital gauge tuning device, the Evolution...