What could you get when a team of diesel, truck, and 4x4 off-road fans get together, while being united by a dream of radically changing the automotive aftermarket? You could surely get Sinister Diesel! The company’s founders, Michael Mitchell and Brian George, just like each and every one of the members of their team, share a love of everything diesel. And so it happened that one afternoon, while having to work on Brian’s truck, they’ve started a new company.

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    • (0 reviews)
      # sp29817
      Assault Exhaust System by Sinister Diesel®. Sinister Diesel exhaust systems deliver tuned performance and are designed to maximize your diesel trucks horsepower and torque. Precision cut and bent out of 409 Stainless Steel, exhaust is...
      $699.00 - $749.00
    • (0 reviews)
      # sp17222
      Stainless Steel Exhaust Header by Sinister Diesel®. Sinister Diesel High Quality Stainless Steel Exhaust Headers. These headers are made from durable stainless steel and are built to last. Headers include CNC stainless flanges and are...
      $1,499.00
    • (0 reviews)
      # sp112249
      EGR Cooler by Sinister Diesel®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality at...
      High quality at an affordable priceExpertly made from premium materials
      $319.00 - $914.15
    • (0 reviews)
      # sp29806
      Billet Cap Assembly by Sinister Diesel®. With these precision CNC machined billet parts, you will never worry about cracking your factory plastic 6.0 Oil/Fuel filter caps again!
      High quality at an affordable priceExpertly made from premium materials
      $199.00
    • (0 reviews)
      # sp29820
      Steering Box Stabilizer by Sinister Diesel®. If you are looking to upgrade the steering system of your vehicle to make the most out of your vehicle’s performance, go with this high-grade steering part that is engineered to be second...
      High quality at an affordable priceBuilt to match your exact requirements
      $189.00
    • (0 reviews)
      # sp29819
      Y-Pipe Set by Sinister Diesel®. All of up-pipe kits a fully TIG welded on a fixture, as well as back-purged for the highest quality, strongest weld possible.
      Designed to boost your vehicle's performanceMandrel Bent Tubing, Full TIG welds, and CNC Precision Machined
      $499.99 - $689.99
    • (0 reviews)
      # sp29798
      External Oil Filter System by Sinister Diesel®. The oil system in your engine is crucial to the trucks performance and life. Keeping your oil clean is what it all comes down to. The Sinister oil filter kit is here to do just that. This...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $385.95 - $499.95
    • (1 review)
      # sp110051
      Stainless Steel Exhaust Kit by Sinister Diesel®. Sinister Diesel exhaust systems deliver tuned performance and are designed to maximize your diesel trucks horsepower and torque. Precision cut and bent out of 409 Stainless Steel, our...
      $465.00 - $525.00
    • (0 reviews)
      # sp29799
      Head Gasket and ARP Stud Kit by Sinister Diesel®. This is a great addition to any order while your tearing your motor down. If you need a little more than just the normal Head Gaskets and Stud kit includes, you can also add the intake...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $861.40 - $1,118.55
    • (0 reviews)
      # sp29807
      CAT™ Fuel Filter Adapter by Sinister Diesel®. The Sinister Diesel CAT fuel filter adapter allows you to install a 2 micron CAT fuel filter without any major modifications. Kit Includes: Sinister Diesel CAT Fuel Filter Adapter Standoff...
      High quality at an affordable priceExpertly made from premium materials
      $129.99 - $169.99
    • (0 reviews)
      # sp29795
      Black Diamond Head Gasket by Sinister Diesel®. Replace blown, leaky stock head gaskets in your diesel truck with high performance gaskets designed to operate in the extreme heat and high cylinder pressures that your Duramax Diesel...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $124.00 - $198.00
    • (0 reviews)
      # sp29818
      Up-Pipe by Sinister Diesel®. Upgrade your Up-pipes with Sinister's stainless steel mandrel bent up-pipes. Sinister Diesel exhaust components deliver tuned performance and are designed to maximize your diesel trucks horsepower and...
      Designed to boost your vehicle's performanceStainless steel tubes for longevity
      $119.00 - $589.99
    • (0 reviews)
      # sp112853
      Fuel Regulator and Return Hose Kit by Sinister Diesel®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...
      High quality at an affordable priceExpertly made from premium materials
      $699.00
    • (0 reviews)
      # sp29805
      Water Pump by Sinister Diesel®. Proper heat management from the cooling system is crucial on modified engines when you want trouble-free and reliable performance. The factory Duramax water pump is known to slip under load and can...
      TIG welded on both Impeller and GearDrop-in replacement for factory water pump
      $199.00 - $239.00
    • (0 reviews)
      # sp18698
      Thermostat Housing by Sinister Diesel®. This billet aluminum housing replaces the OEM housing which can be lower-quality stamped steel that may not always seal properly after replacing your thermostat. This billet aluminum housing...
      High quality at an affordable priceBuilt to match your exact requirements
      $49.95
    • (0 reviews)
      # sp29809
      Fuel Filter Cap by Sinister Diesel®. Never worry about cracking your factory plastic fuel filter cap again! Made out of 6061 T6 Aluminum anodized blue for superior finish quality.
      High quality at an affordable priceExpertly made from premium materials
      $79.95 - $89.95
    • (0 reviews)
      # sp29811
      Motor Fuel Rail Plug by Sinister Diesel®. This product is made of high-quality materials to serve you for years to come. Designed usig state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...
      High quality at an affordable priceExpertly made from premium materials
      $45.00
    • (0 reviews)
      # sp29810
      Fuel Tank Sump Kit by Sinister Diesel®. Sinister Fuel Tank Sump Kit. If you need added fuel flow, or your having issues with your factory draw straw picking up fuel when the tank is getting low. This is designed to feed the biggest...
      High quality at an affordable priceExpertly made from premium materials
      $164.00
    • (0 reviews)
      # sp29801
      Turbo Piping by Sinister Diesel®. Designed utilizing the latest technology, this product by Sinister Diesel features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $195.00 - $310.00
    • (0 reviews)
      # sp29796
      Bypass Oil Filter System by Sinister Diesel®. The oil system in your engine is crucial to the trucks performance and life. Designed utilizing the latest technology, this product by Sinister Diesel features premium quality and will...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $300.00
    • (0 reviews)
      # sp29800
      Powermax Turbo by Sinister Diesel®. Sinister Diesel has made their own turbo kit that comes complete with a high-performance BatMoWheel compressor wheel by Bullseye Performance.
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $1,599.00 - $2,230.20
    • (0 reviews)
      # sp29813
      Throttle Valve Delete by Sinister Diesel®. This product is made of high-quality materials to serve you for years to come. Designed usig state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...
      Increased airflowLess turbulance
      $109.00
    • (0 reviews)
      # sp29821
      Steering Box Support by Sinister Diesel®. If you are looking to upgrade the steering system of your vehicle to make the most out of your vehicle’s performance, go with this high-grade steering part that is engineered to be second to...
      High quality at an affordable priceBuilt to match your exact requirements
      $189.00
    • (1 review)
      # sp29803
      Intake Elbow by Sinister Diesel®. This kit is designed and engineered to out perform the competition. Comes with a Mandrel bent aluminum tube and CNC base plate designed to hold even the highest boost levels.
      Mandrel Bent Tubing1/8" NPT Bung Installed
      $189.00 - $339.00
    • (0 reviews)
      # sp29802
      EGR Cooler Delete Kit by Sinister Diesel®. The kit is built from a durable and temperature-resistant billet aluminum. Replacing your EGR system can result in quicker turbo spool and lower EGTs. It also eliminates exhaust recirculating...
      High quality at an affordable priceExpertly made from premium materials
      $189.00 - $569.00
    • (0 reviews)
      # sp75641
      Cold Air Intake by Sinister Diesel®. Before we put our name on any part we manufacture, it has to beat the competition in 5 ways: Strength; Performance; Simplicity; Durability; and Fit. The Sinister 6.0 cold air intake meets all those...
      Compliant with the strictest standards for qualityExpertly crafted using the up-to-date technology
      $299.00 - $349.00
    • (0 reviews)
      # sp107339
      PCV Reroute Kit by Sinister Diesel®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality...
      High quality at an affordable priceExpertly made from premium materials
      $159.99
    • (0 reviews)
      # sp129874
      Coil Spring Spacers by Sinister Diesel®. If you want to level your car, Sinister Diesel leveling kit is what you want. And we just happen to have it for a price you want too. If you want to level the front end of your truck with the...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $99.00 - $209.00
    • (0 reviews)
      # sp119457
      EGR Valve by Sinister Diesel®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality at an...
      High quality at an affordable priceExpertly made from premium materials
      $135.82 - $171.90
    • (0 reviews)
      # sp122944
      Diesel Injection Pump by Sinister Diesel®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...
      High quality at an affordable priceExpertly made from premium materials
      $837.25 - $1,675.58




    Now customers can easily find one of the greatest selections of high-quality Sinister Diesel performance products all in one place. The company has become a one-stop shop for Duramax, Cummins, and Powerstroke diesel performance parts for many off-road enthusiasts. Sinister Diesel had their own vision about exactly how their products should perform and look like. Some of the company’s products feature distinctive and stylish metallic blue color, that the company itself calls the “Sinister Blue”.

    Right from the very beginning, Sinister Diesel has gotten a great reputation for their products; that’s how the company knew that they were on the right track. Today, it is perhaps one of the fastest developing companies providing high-performance aftermarket diesel components and systems. The brand is proud to offer air intakes and parts, injectors, Sinister EGR delete kits, tuners and programmers, Sinister Diesel exhaust systems, etc. The company offers high-performance aftermarket parts for any type of diesel trucking to help their customers modify or repair the Duramax, Cummins, or Powerstroke diesel engine. The spirit of diesel trucking fans is very much like their own - a little bit rebel. We don’t all lead rebel lifestyles, but we all can share that spirit, and Sinister Diesel captures it.

    Sinister Diesel Reviews

    Average rating:  4.5  4.6 - 5 reviews
    5 of 5
    2004.5 Cummins 5.9 Sinister Diesel
    I read a lot of diesel forums claiming that intake elbows and boost tubes on the 5.9 Cummins do nothing but look pretty but after purchasing this Sinister Diesel intake elbow and boost tube I am in disbelief at the gain I got. The install took about an hour and a half mostly because the original cold pipe was a pain in the butt to get out but all that aside after it was all said and done I took my truck for a cruise. I notice better low end right off the jump not too much in the middle but after I jumped on it on the freeway I went from 65 to 85 like nothing! I’m not big on hyping up shiny products and can only speak from my experiences. The only other upgrades are a MagnaFlow 5inch turbo back exhaust “no cat” and an aFe cold air intake. I would definitely recommend Sinister Diesel products and will be buying their turbo and hot pipe next. I'm a Sinister fan for life.
    JPosted by Joshua (Fernley, NV) / April 3, 2018
    2007 Dodge Ram
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