SPETUNER - Diesel Performance Parts Store
Founded in 2020, SPETUNER is a DTC, value-focused diesel performance parts brand and online supplier serving Ford Powerstroke, Dodge/Ram Cummins, and Chevy/GMC Duramax owners.
We focus on vehicle-specific parts, complete upgrade packages, clear fitment information, installation resources, and practical support. Our goal is to offer complete kits to make diesel truck upgrades easier to choose and easier to install.
Making Diesel Upgrades Easier to Choose
As truck enthusiasts, we know that diesel upgrades are often harder to choose than they should be. Two parts may look similar, yet differ completely by truck platform, engine family, model year, or specific installation goals.
SPETUNER was founded to make that process clearer. Our goal is not simply to list more parts, but to help truck owners, DIY installers, repair shops, and dealers narrow down the exact parts needed for the right application.
Diesel Upgrade Parts
SPETUNER provides diesel upgrade products for Powerstroke, Cummins, and Duramax truck owners who want parts organized by platform, engine, model year, and installation goal. We offer all-in-one diesel delete kits, truck tuners, EGR delete kits, DPF delete kits, CCV / PCV reroute kits, intercooler pipe kits, intake manifolds, air intake parts, downpipes, and up pipes.
Ford Powerstroke
Fitment-specific parts, complete kits, tuning-related products, airflow components, exhaust parts, and supporting hardware for listed Ford diesel applications.
Shop Powerstroke Parts
Dodge/Ram Cummins
Parts and packages organized around Cummins engine families, model-year ranges, truck configuration, and common installation needs.
Shop Cummins Parts
Chevy/GMC Duramax
Diesel upgrade solutions for supported Duramax-powered Chevrolet and GMC trucks across listed engine generations and model years.
Shop Duramax PartsFor Military, Veterans and First Responders
When the program is active, eligible military members, veterans, police officers, firefighters, EMTs, and paramedics can contact SPETUNER to confirm current availability, eligibility requirements, and discount details.
Compliance Notice: Some emissions-related products may be intended only for off-road, closed-course competition, export, or other legally permitted use. They are not intended for use on pollution-controlled vehicles operated on public roads where such use is prohibited. Customers are responsible for understanding and complying with all applicable local, state, and federal laws before purchase, installation, or use.
Brand Disclaimer: Ford, Powerstroke, Ram, Cummins, Chevrolet, GMC, Duramax, and other vehicle names are used for fitment identification only. SPETUNER is not affiliated with or endorsed by these vehicle manufacturers.
Choose by Platform, Engine and Model Year
SPETUNER is committed to making diesel upgrades clearer through fitment-specific product organization, complete kit options, practical installation resources, U.S. warehouse fulfillment for many products, and responsive customer support.
Frequently Asked Questions
What does SPETUNER sell?
SPETUNER sells diesel performance and upgrade parts for Ford Powerstroke, Dodge/Ram Cummins, and Chevy/GMC Duramax applications.
How should I choose the right part?
Start with your truck platform, engine family, model year, and product fitment notes. Contact SPETUNER support before ordering if fitment is unclear.
Does SPETUNER offer complete kits?
Yes. Many product lines include complete kit options designed to help buyers reduce missing components and simplify upgrade planning.
Where do orders ship from?
Many products ship from U.S. warehouses when available. Delivery time may vary by item, destination, stock status, and carrier service.
What should I know about emissions-related products?
Some products may be limited to off-road, closed-course competition, export, or other legally permitted use. Customers are responsible for following applicable laws before purchase and installation.