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Sinister Diesel

Sinister Diesel - Premium Diesel Performance Upgrades

Sinister Diesel has become one of the most recognized names in aftermarket diesel performance, building high-quality parts that unlock more power, reliability, and efficiency for Cummins, Duramax, and Powerstroke engines. What sets Sinister apart is its combination of precision engineering and proven performance upgrades, backed by parts that not only perform but also look as sharp as they run. Their lineup covers everything from cold air intakes, EGR delete kits, intercooler piping, fuel return kits, injector packages, and turbochargers to much more. Popular options include the Sinister Diesel oil cooler for Ford Powerstroke, cold air intake for Chevy/GMC Duramax 6.6L LML, steering box support for Dodge Cummins, Pitbull Series 1 Turbocharger for Ford Powerstroke 6.0, and exhaust headers built to handle serious performance demands. At Norcal Diesel Performance, we carry Sinister Diesel’s top-performing upgrades and provide expert installation services in Orangevale, CA. Upgrade with Sinister Diesel today and experience the power and reliability that sets your build apart.


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Sinister Diesel Fuel Filter and Adapter

Sinister Diesel offers high-performance fuel filters and adapter kits designed to improve diesel engine efficiency and longevity. Their CAT Fuel Filter Adapter Kit, compatible with 2001-2016 GM Duramax 6.6L engines, allows users to replace the factory fuel filter with a superior 2-micron CAT fuel filter for enhanced filtration and engine protection. The kit includes all necessary components for easy installation, reducing contaminants that could harm the fuel system. Sinister Diesel also provides replacement CAT fuel filters to ensure continued peak performance, reinforcing their commitment to high-quality aftermarket diesel solutions.

Sinister Diesel Injector Packages

Sinister Diesel offers comprehensive Injector Packages designed to enhance the performance and reliability of diesel engines. These packages are tailored for specific engine models and include high-quality components to ensure optimal operation. For instance, the Injector Package for the 2001-2004 Duramax LB7 includes ARP head studs, high-pressure fuel injector lines, remanufactured fuel injectors, and Mahle head gaskets. Similarly, for the 2004-2007 Ford Powerstroke 6.0L, the package comprises remanufactured injectors built on remanufactured bodies with all-new components, such as nozzles and connectors, to ensure optimal performance and reliability. These packages are designed to restore lost horsepower and return the injection system to OEM factory performance without the high cost of OEM replacements.