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2017-2025 Duramax 3.5" Downpipe (L5P-EXH-A004)
Sale price
$695.00
Regular price
Regular price
$695.00
Unit price
Tax included.
Shipping calculated at checkout.
Off-road and competition use only
Not for use on road-registered vehicles. Removing or modifying emissions equipment on a registered vehicle is illegal in Australia.
2017-2025 Duramax 3.5" Downpipe (L5P-EXH-A004)
Sale price
$695.00
Regular price
Regular price
$695.00
Unit price
Dirty Diesel Customs
Art: L5P-EXH-A004
Vehicle Fitment
Set your vehicle
Fits
- Chevrolet Silverado 2500 / 2500HD2017–2025
- Chevrolet Silverado 3500 / 3500HD2017–2025
- GMC Sierra 2500 / 2500HD2017–2025
- GMC Sierra 3500 / 3500HD2017–2025
Before you order
Not sure it fits? Ask us.
Send your year, model and engine. We'll confirm the part number before you buy.
Pay later
Afterpay & Zip
Split it into instalments
Delivery
Australia-wide
Usually 3–7 business days
Genuine
US & Canadian brands
Not copies or knock-offs
Support
Real people, no bots
20+ years fitting this gear
Aussie owned. 25 years in the auto trade.
About us
Normally ships within 3–8 business days
Description
Fits
| Year | Make | Engine |
| 2017-2025 | GMC | L5P 6.6L Duramax |
Note: Custom Tuning Required
Ready to elevate your L5P Duramax? Look no further than the enhanced 3.5" L5P Downpipe. Bid adieu to the restrictive stock L5P downpipe that's sending your EGTs through the roof and robbing your ride of its power.
Part Number: L5P-EXH-A004
Features
- 3.5" Downpipe
- Full Stainless Steel
- Comes With High-Quality Heat Wrap Kit
- Replaces Restrictive 'Crushed' OE Downpipe and Cat
- Connects to Factory Turbo Outlet
- Works with Any Aftermarket Race Exhaust System OR OEM System
- 4-Bolt Flange
Notes
- Does Not Include Bungs for Sensors - Off-Road Competition Use Only!
- We recommend adding the EGR Upgrade Kit with this downpipe. It includes everything you need to fix your OEM EGR before it starts causing you problems and costing you money.