MagnaFlow 3in Turbo Downpipe 2001-2004 GM 6.6L Duramax LB7 Stainless

SKU: mag15398 UPC: 841380091178
In stock - 3 items available
Regular price $212.00

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Verified Fitment & Application Support

This product is selected for proper fitment and compatibility with the listed engine application. Our team is available to assist with fitment questions, installation considerations, and supporting components to ensure a smooth install and reliable performance.

Compliance & Restrictions
California Proposition 65 (Prop 65)
WARNING: This product can expose you to chemicals which is known to the State of California to cause cancer and/or reproductive harm. For more information, visit www.P65Warnings.ca.gov.
CARB / California Emissions Compliance
This item may be restricted in California and other regions with emissions regulations. If applicable, it is intended for competition/off-road use only unless otherwise stated. It is the customer’s responsibility to confirm local compliance before purchase. Orders shipping to restricted areas may be canceled.

The turbo downpipe is the first thing the exhaust sees after the turbocharger, and the factory piece on an LB7 is one of the more restrictive parts of the system. MagnaFlow's 15398 replaces it with 3in mandrel-bent stainless.

It uses the OE break locations, so it goes in without cutting the rest of the exhaust apart. Stainless construction means it will not rot out the way a coated steel pipe does in that heat.

Worth flagging: this part is sometimes advertised as a 4in pipe. MagnaFlow's own data says 3in. Year coverage is also listed as 2001-2005 by some retailers and 2001-2004 LB7 by diesel specialists.

Specs

  • Fits: 2001-2004 GM 6.6L Duramax LB7
  • Diameter: 3in
  • Material: stainless steel
  • Manufacturer Part Number: 15398

Shipping Height: 6.5

Shipping Length: 26.0

Shipping Width: 6.6

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