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FAS 850 Package | Trackhawk & Durango
The FAS 850 Package is the perfect balance between drivability and performance, pushing your Hellcat platform to 850 WHP with pulley upgrades, injectors, pinned crank, thermostat, and full dyno tuning.

800 HP Package (Trackhawk/Durango)
The FAS 800 Package is designed for Hellcat owners who want a reliable 800 WHP build with factory-like drivability.

Factory Freak Package (Trackhawk)
The FAS “Factory Freak” Package delivers 60–70+ wheel horsepower gains with no tuning required.
Shop Questions, Answered
Get quick clarity on fitment, shipping, and checkout behavior before you add to cart.
- Do you support Hellcat, TRX, Trackhawk, and diesel platforms?
- Yes. The storefront includes platform-specific parts, packages, and services for core domestic performance and diesel builds.
- How do I confirm fitment before ordering?
- Use category, vehicle, and filter controls first, then confirm details on the product page. If your combo is custom, contact F.A.S. before checkout.
- Are install-only services mixed with shippable parts?
- Yes. Install-only items are clearly tagged and handled correctly in cart/checkout while standard parts continue through normal shipping flow.
- Do you offer free shipping on eligible package profiles?
- Eligible package profiles can receive free shipping. Shipping is computed from live cart data during checkout based on the selected items.