2004.5-2010 Duramax Aluminized 3" Turbo Downpipe (GM8424)
2004.5-2010 Duramax Aluminized 3" Turbo Downpipe (GM8424) is backordered and will ship as soon as it is back in stock.
Shipping & delivery
Usually ships in 2–3 business days unless a different lead time is shown on this page. Shipping cost is calculated at checkout (UPS or USPS to the contiguous U.S.).
Shipping policy · Returns · Fitment questions? (561) 207-7988
Delivery and Shipping
Delivery and Shipping
Standard order processing is 2–3 business days unless this product or your order confirmation states a different lead time. Custom-built, made-to-order, backorder, and pre-order items follow their stated lead times.
Enclosures and subwoofer boxes ship for $50 per unit. Other shipping charges are calculated at checkout. Orders outside the contiguous 48 United States may require additional shipping; we will contact you for approval before shipment.
Subwoofer boxes ship UPS Ground where available. Read our Shipping Policy and Return and Refund Policy for delivery, product-specific return windows, and warranty details.
2004.5-2010 Duramax Aluminized 3" Turbo Downpipe (GM8424)
2004.5-2010 Duramax Aluminized 3" Turbo Downpipe (GM8424) is backordered and will ship as soon as it is back in stock.
Description
Description
The MBRP GM8424 3" Downpipe helps your 2004.5-2010 6.6L LLY/LBZ/LMM breathe by increasing the exhaust flow that comes off your turbocharger. This system features full 16-gauge mandrel-bent tubing for maximum flow and an extremely high-temperature ceramic coating. By removing the restrictive OEM downpipe and replacing it with a free-flowing MBRP downpipe, you will deepen the sound of your 6.6L, lower EGTs, and increase performance. The install process is as simple as it gets from the precision bending that you'd expect from an MBRP kit!
- 3" Turbo Downpipe
- Aluminized
FITS
- 2004.5 - 2010 GMC Duramax 6.6L LLY / LBZ / LMM
Fitment & installation
Fitment & installation
Check the selected part against your vehicle. Need help? Call (561) 207-7988.
Selected part: GM8424
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Read FOX’s application notes for part 987-24-001 (rear shock)
Payment & Security
Payment methods
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