3.0L Duramax LM2 Delete Pipe (No Muffler) - Chevy Silverado 1500 / GMC Sierra 1500 (2020-2024)

Built in Canada. Zero compromises.

The LM2 3.0L Duramax in the 2020-2024 Silverado 1500 and Sierra 1500 is a refined diesel held back by factory aftertreatment restriction. This kit replaces the restrictive downpipe and midpipe with a single CNC mandrel-bent 3" stainless section, tying back into the factory muffler for a clean, no-cut install.

304 stainless steel, CNC mandrel-bent as one piece - no welded joints along the pipe run. CNC-machined flange for a precise factory seal. High-temp exhaust wrap and a heavy-duty aluminized clamp included.

What's Included

• 3" stainless one-piece mandrel-bent delete pipe
• High-temp exhaust wrap
• Heavy-duty aluminized clamp

Important Notes

• For off-road and competition use only. Not for use on public roads where emissions regulations apply. Not for sale/shipment to the USA.
• ECU tuning is required after installation to delete fault codes and optimize fueling. Tuning sold separately.
• Ties into the factory muffler - retains dual exhaust, no cutting the tailpipe section.

Vs. our NAT Performance LM2 kit

We carry two 3.0L Duramax LM2 exhaust options. Neither supplier publishes dyno/flow comparison data between them, so we won't invent a performance claim either way - the real differences we can confirm are construction and fitment:

• This kit (Dirty Diesel Customs): one-piece CNC mandrel-bent construction, no weld seams in the pipe run. Fits 2020-2024. Includes exhaust wrap and clamp.
• NAT Performance kit: welded downpipe + midpipe assembly. Fits 2020-2022 only (does not cover 2023-2024).

Both retain the factory muffler and dual exhaust, both require a tune after install. If you're on a 2023-2024 truck, this is currently the only one of the two that fits.

Vehicle Fitment

Questions? Email bentley@valiosdynamics.com or call 778-721-4911.