Sinister Diesel

Factory coolant hoses are prone to abrasions and cracking over time that could lead to cooling system failures, but this 01-05 Duramax 6.6L radiator pipe kit is the perfect way to ensure that your...

Add years of life to your diesel engine with this Coolant Filter Bypass System. Removing contaminates such as the casting sand and metal shavings means your engine's water pump, EGR cooler and oil...

CARB EO # PENDING; CURRENTLY NOT FOR SALE IN THE STATE OF CALIFORNIA , Note: This part is in high demand and may require a build time of 6 to 8 weeks. If you need this part sooner, please call us at...

The easy 30 minute install of the new updated "Blue Spring" will increase your fuel pressure back up to where it should be from the factory. Most 6.0's see an increase of 10 psi of fuel pressure. The...

Check out our new revision of the 6.0 Powerstroke Coolant Filtration System HERE, It doesn't matter if your 6.0L Ford Powerstroke engine is brand new or has had a long service life, there are...

Not Recommended for OEM Pipes, Hot Side Boots Available by itself here, These heavy duty intake boots are Four Ply Silicone and won't crack or split like the factory rubber boots. Features: Heavy...

It's common knowledge that the oil cooler on the 6.0L PowerStroke is prone to failure which could leave you with costly repairs, so Sinister Diesel offers the Ford 6.0 Oil Cooler kit to make sure...

Secure your radiator and add some good looks under the hood with our Sinister Diesel Radiator Support Brackets for the 2003-2007 Ford Powerstroke 6.0L. They're laser cut and CNC formed from aluminum...

It doesn't matter if your 6.0L Ford Powerstroke engine is brand new or has had a long service life, there are contaminants like casting sand leftover from the manufacturing process, metal shavings,...

Kit includes:Sinister Diesel Adjustable Track Bar, Sinister Diesel Steer Box Support, All hardware necessary for installationIf you have the newer 6-bolt steering box installed, you will need the...

A cracked fuel filter cap can lead to air in the fuel system. That can result in hard starting or potential fuel injector issues. A cracked fuel filter cap can also cause a fuel leak, which is...

This kit comes in a set of two each, Oil Stand Pipes and Dummy Plugs for the Ford 6.0 Powerstroke. These are Sinister Diesel's updated stand pipes and dummy plugs that are great for preventative...

This item is 50-State Legal - CARB EO# D-721; Features:Stainless Steel Construction, Fully TIG Welded and Pressure Tested, Improved exhaust gas flowKit Includes:Sinister Diesel 6.0 Powerstroke EGR...

Under full throttle or hard driving conditions, the stock pressure relief valve can allow fuel rail pressure to drop which can cause a dangerous lean condition as well as trigger DTC codes P0087 and...

Sinister Diesel's Billet Valve covers for the 2004.5-2010 Duramax will help clean up the engine bay, and add a little more clearance for custom turbo or fuel upgrades. These are fully CNC machined,...