• Cart

SKU #: MF-15398 MPN #: 15398

Magnaflow 3" Stainless Steel Turbo Direct Pipe 01-04 GM 6.6L Duramax

$212.00
Get 212 points in loyalty rewards
Description
The MagnaFlow Performance Exhaust Diesel Turbo Downpipe is a high-quality performance exhaust component designed to improve exhaust flow and support greater turbo efficiency in diesel applications. Constructed from mandrel-bent stainless steel, this downpipe replaces the restrictive factory section near your turbocharger with a smoother, more open path for exhaust gases, helping reduce backpressure and improve overall engine response. Built using precision CNC robotic manufacturing techniques, the downpipe delivers superior fitment and long-lasting corrosion resistance for dependable day-to-day performance. Its direct-fit design makes installation straightforward by using existing break locations in the exhaust, and its compact 23" length with 3" main piping is optimized for improved flow characteristics without unnecessary complexity. Whether you’re repairing a worn stock pipe or upgrading your exhaust system as part of a performance build, this downpipe provides a solid foundation for better turbo response.  FEATURES & BENEFITS: Mandrel-bent 3" stainless steel tubing for improved exhaust flow and durability. CNC precision construction for consistent shape and reliable performance. Corrosion-resistant stainless steel construction for long service life.  Direct-fit bolt-on design that uses OEM exhaust break points.  Weight-optimized for performance without added bulk.  INSTALLATION NOTES: Turbo downpipe configuration connects near the turbocharger to replace factory exhaust routing. Direct-fit design makes installation simpler for experienced technicians or DIY enthusiasts. Confirm vehicle compatibility before purchase. This pipe is typically used in diesel trucks and performance diesel builds.  The MagnaFlow Turbo Downpipe is an excellent choice for diesel truck owners looking to enhance exhaust flow and support improved turbocharger performance with a durable, direct-fit stainless steel component.

Enter your zip and we'll see if installation is available.

  • Request quotes from local installers at checkout
  • Compare options and choose the best fit for your install

The MagnaFlow Performance Exhaust Diesel Turbo Downpipe is a high-quality performance exhaust component designed to improve exhaust flow and support greater turbo efficiency in diesel applications. Constructed from mandrel-bent stainless steel, this downpipe replaces the restrictive factory section near your turbocharger with a smoother, more open path for exhaust gases, helping reduce backpressure and improve overall engine response.

Built using precision CNC robotic manufacturing techniques, the downpipe delivers superior fitment and long-lasting corrosion resistance for dependable day-to-day performance. Its direct-fit design makes installation straightforward by using existing break locations in the exhaust, and its compact 23" length with 3" main piping is optimized for improved flow characteristics without unnecessary complexity. Whether you’re repairing a worn stock pipe or upgrading your exhaust system as part of a performance build, this downpipe provides a solid foundation for better turbo response. 

FEATURES & BENEFITS:

  • Mandrel-bent 3" stainless steel tubing for improved exhaust flow and durability.
  • CNC precision construction for consistent shape and reliable performance.
  • Corrosion-resistant stainless steel construction for long service life. 
  • Direct-fit bolt-on design that uses OEM exhaust break points. 
  • Weight-optimized for performance without added bulk. 

INSTALLATION NOTES:

  • Turbo downpipe configuration connects near the turbocharger to replace factory exhaust routing.
  • Direct-fit design makes installation simpler for experienced technicians or DIY enthusiasts.
  • Confirm vehicle compatibility before purchase. This pipe is typically used in diesel trucks and performance diesel builds. 

The MagnaFlow Turbo Downpipe is an excellent choice for diesel truck owners looking to enhance exhaust flow and support improved turbocharger performance with a durable, direct-fit stainless steel component.

Vehicle Fitment
2001-2004 GM 6.6L Duramax
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
About MagnaFlow Exhaust
The name Magnaflow is synonymous with performance exhaust, no one can refute that. MagnaFlow got its start as a natural extension of Car Sound Exhaust systems. This parent company specializes in superior catalytic converter technology and has spent the last 30 years earning its reputation as a market leader around the world. Magnaflow is proud to continue this tradition through producing the best sounding, best performing and most durable exhaust components in the world. If youre looking for quality, power and sound, then youre looking for MagnaFlow. We at Diesel Power Products proudly carry the entire Magnaflow Exhaust line up to get you the power, sound, and style you're after.

Quality. Power. Sound.
These words are not just their slogan. Theyre the philosophy at Magnaflow.

Quality As a market leader, Magnaflow proudly manufactures all of our products in the USA using premium components and the latest technology. Their products range from direct-fit converters and cat-back systems to universal mufflers and builders kits for fabricating your own custom system. As an ISO-9001 certified company they believe in their products ability to perform and back it up with a lifetime warranty.

Power With 30 years of experience, Magnaflow has learned that automotive enthusiasts always want more. Their 30,000 square-foot R&D tech center is home to two in-ground dynamometers, a flow bench, and sound testing to ensure that every new part passes quality and performance standards before being approved for manufacturing. If it doesnt produce power, they wont make it.

Sound Magnaflow wants you to have the best sound possible. With this in mind, theyve designed all mufflers to have a free flowing, straight through design with a perforated stainless steel core, mesh wrap and acoustical fiber fill to deliver that smooth, deep tone. These mufflers are packed tight with the acoustic material to ensure long life and no sound degradation.