2020–2023 6.6L Duramax Go Fast / Power Package

Build a matched Go Fast / Power Package for your 2020–2023 GM HD 6.6L Duramax. Polar Diesel’s year builder steps you through the parts that work together for off-road and competition builds—EGR upgrade hardware, CCV kits, downpipes, delete pipes, and exhaust options in 409SS or polished 304SS where offered.

L5P-era 6.6L trucks reward a matched package path. Step through Polar EGR, CCV, and exhaust options, then confirm each component’s year coverage.

Start Building

Prefer shopping kits individually? Check out individual parts listed for your application under the main menu for your kit type.

If you have any questions please refer to our FAQ page.

For off-road / competition use only where emissions regulations apply. Not for public-road or highway use on pollution-controlled vehicles. Delete-capable tuning and related modifications are typically required for emissions-related configs—verify with your tuner and local law. This page is not legal advice. Polar Diesel does not encourage illegal on-road deletes.

Why package a 6.6 Duramax Go Fast build?

  • Matched path: EGR + CCV + exhaust choices guided for 2020–2023 6.6L Duramax applications instead of mix-and-match guesswork.
  • Polar Diesel hardware: Same consumer kits sold on polardiesel.ca—built for fitment clarity and Canadian retail checkout.
  • Material options: Choose durable 409SS or show-ready polished 304SS where the builder offers them.
  • Start building: Use Start Building above, then confirm fitment on each selected component.