Duramax 6.6 Polar EGR Delete Installation Guide (2017–2026)
Off-road / competition use only where emissions rules apply. Emissions-related deletes and DPF-off configurations are not for vehicles operated on public roads or highways subject to those regulations. Confirm local laws before purchase or install. Not legal advice.
This page is Polar Diesel’s HTML overview for installing the 2017–2026 Duramax 6.6L Polar EGR delete kit (hub PDF labeled EGR / downpipe instructions). Confirm year/engine fitment on the product page, then follow the official PDF. For 2011–2016 trucks, use the separate year-split EGR guide.
Download official Duramax 6.6 (2017–2026) EGR install PDF
← All Polar Diesel install guides (QR / instructions hub)
High-level steps
- Confirm year (2017–2026) and legal intended use (off-road/competition where required).
- Download and read the Polar Duramax 6.6 2017–2026 EGR PDF end-to-end.
- Disconnect battery / relieve coolant as directed; support the truck safely.
- Remove factory EGR path components per PDF; install Polar Diesel hardware in order.
- Refill/bleed coolant, check for leaks, complete required tuning, and verify configuration.