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2011-2016 6.6L GM Duramax LML Recipes for Horsepower

We get a lot of calls asking, "What do I need to do to my truck to attain a certain horsepower level?" If you've been wondering the same, below are various "recipes" of parts that are needed to reach ... read more

ARP 230-4201 Diesel Head Stud Kit 01-15 6.6L GM Duramax ARP-230-4201 15.00 ARP 230-4201 Diesel Head Stud Kit 01-15 6.6L GM Duramax ARP 230-4201 ARP Head studs are a must if you are running in excess of 45psi of boost on your Duramax Diesel. Good insurance against head gasket failure. ATS Stage 1 Transmission Package 11-16 6.6L GM Duramax LML ATS-3099134362-main 0.00 ATS Stage 1 Transmission Package 11-16 6.6L GM Duramax LML ATS Diesel Performance 3099134362 Diesel Power Products carries the ATS Stage 1 Transmission Package for 2011+ 6.6L GM Duramax LML PPE Heavy Duty Deep Aluminum Transmission Pan 01-19 Duramax PPE-128051000-main 0.00 PPE Heavy Duty Deep Aluminum Transmission Pan 01-19 Duramax PPE (Pacific Performance Eng.) 128051000 Keep your Allison transmission running cool with this simple to install PPE Transmission Pan. ATS 7018004362 Twin Fueler Pump Kit w/o Pump 11-16 6.6L LML GM Duramax ATS-7018004362 45.00 ATS 7018004362 Twin Fueler Pump Kit w/o Pump 11-16 6.6L LML GM Duramax ATS Diesel Performance 7018004362 The factory CP4 injection pump found on the LML Duramax cannot support any fueling above stock. Give your engine the fueling it needs with a dual pump kit from ATS! S&B Cold Air Intake System 11-16 6.6L GM Duramax LML SB-75-5075-Main 0.00 S&B Cold Air Intake System 11-16 6.6L GM Duramax LML S&B Filters 75-5075-1 Looking to gain more power, performance and an increased air flow to your LML Duramax? S&B Filters have mastered the science behind providing just that. Dynomite Diesel 100 Horsepower Injector Set 11-16 6.6L GM Duramax LML DDP_LML-100 12.00 Dynomite Diesel 100 Horsepower Injector Set 11-16 6.6L GM Duramax LML Dynomite Diesel DDP.LML-100 Give your Duramax LML a giant boost in power with these 100hp injectors, race only but seriously awesome! Fleece Performance Tie Rod Sleeves 11-16 GM 2500 / 3500 FPE-TIERODSLEEVES-LML 3.00 Fleece Performance Tie Rod Sleeves 11-16 GM 2500 / 3500 Fleece Performance Engineering FPE-TIERODSLEEVES-LML Avoid broken tie rods with a set of Fleece Tie Rod Sleeves for your Heavy Duty GM truck. Merchant Automotive 10357 Transmission Rear Housing Support 11-19 GM Duramax MA-10357 10.00 Merchant Automotive 10357 Transmission Rear Housing Support 11-19 GM Duramax Merchant Automotive 10357 Prevent transmission case cracks in your LML Duramax with this inexpensive, easy to install upgrade from Merchant! AFE 46-20111 BladeRunner GT Series Intercooler 11-15 6.6L GM Duramax LML AFE-46-20111 76.00 AFE 46-20111 BladeRunner GT Series Intercooler 11-15 6.6L GM Duramax LML AFE 46-20111 Increase the efficiency of your Duramax with a BladeRunner GT Intercooler! GRP Fuel Filter Delete 01-16 6.6L GM Duramax GRP-FBD-DMAX 3.00 GRP Fuel Filter Delete 01-16 6.6L GM Duramax Generic Race Parts (GRP) GRP-FBD-DMAX Eliminate the cumbersome stock fuel filter on your Duramax with this simple kit from GRP! EZ LYNK Auto Agent 2 by Kory Willis of PPEI 11-16 6.6L GM Duramax LML PPEI-EZLYNK20-LML 5.00 EZ LYNK Auto Agent 2 by Kory Willis of PPEI 11-16 6.6L GM Duramax LML PPEI | Power Performance Enterprises, Inc | EFILive by Kory Willis PPEI-EZLYNK20 Demand the best tuning device for your Duramax, a preloaded EZ LYNK from PPEI. ATS 7019004368 Twin Fueler Pump Kit with Pump 11-16 6.6L LML GM Duramax ATS-7019004368 39.00 ATS 7019004368 Twin Fueler Pump Kit with Pump 11-16 6.6L LML GM Duramax ATS Diesel Performance 7019004368 The factory CP4 injection pump found on the LML Duramax cannot support any fueling above stock. Give your engine the fueling it needs with a dual pump kit from ATS!

We get a lot of calls asking, "What do I need to do to my truck to attain a certain horsepower level?" If you've been wondering the same, below are various "recipes" of parts that are needed to reach certain power levels along with any companion parts that you'll need to ensure the overall drivability and integrity of your truck. For example, you could grab the highest setting on your programmer to make 550HP on a dyno run but for longevity sake, you would be better off with a cold air intake, exhaust, lift pump, and a lower setting on the tuner. Or we will recommend an upgraded injection pump once you've reached a power level where we have found it to be necessary. We are going to mention a lot of specific products, and these are products that we prefer through our experience. There are, of course, many other options available that can get the job done, as well.

Bear in mind that even though GM says your truck is 397HP they are quoting flywheel horsepower, not rear wheel horsepower. On a dyno, the actual rear wheel horsepower for these trucks is about 350HP. Please don't get sucked into the trap of adding all of the manufacturer stated horsepower gains for the individual products together to estimate your horsepower. This will only lead to disappointment! There is typically a substantial amount of overlap when combining products, but this is a necessary evil.

Click on any of the below items to be directed to that product page for more information. As always, feel free to give us a call and we would be happy to assist!

400 Horsepower Drivetrain Upgrades 500 Horsepower Drivetrain Upgrades

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