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Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
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Magnaflow
MagnaFlow Performance Exhaust Diesel Turbo Downpipe 15398 - Select 2001-2005 Chevrolet/GMC (V8-6.6L) 3in.
This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!
Fits select 2001-2005 Chevrolet Silverado and GMC Sierra 2500 HD and 3500 models (V8-6.6L).
The MagnaFlow Performance Exhaust Diesel Turbo Downpipe 15398 is a high-flow replacement designed to connect directly near your turbocharger, reducing backpressure and improving exhaust gas velocity. Constructed from 100% corrosion-resistant stainless steel, this 3-inch diameter pipe is mandrel-bent to ensure consistent flow throughout the bend without the restrictions found in factory press-bent tubing. Each unit is produced using precision CNC robotic manufacturing techniques for exact fitment and weight optimization.
- 3-inch mandrel-bent stainless steel tubing for superior flow characteristics
- Precision CNC robotic manufacturing ensures a perfect fit
- Durable, corrosion-resistant stainless steel construction
- Weight-optimized design specifically for Duramax diesel applications
- Designed to replace the restrictive factory turbo downpipe
- Manufacturer Part Number: 15398
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2001-2005 | Chevrolet | Silverado 2500 HD | Base |
| 2001-2005 | Chevrolet | Silverado 2500 HD | LS |
| 2001-2005 | Chevrolet | Silverado 2500 HD | LT |
| 2003-2005 | Chevrolet | Silverado 2500 HD | WT |
| 2001-2005 | Chevrolet | Silverado 3500 | Base |
| 2001-2005 | Chevrolet | Silverado 3500 | LS |
| 2001-2005 | Chevrolet | Silverado 3500 | LT |
| 2004 | Chevrolet | Silverado 3500 | WT |
| 2002-2005 | GMC | Sierra 2500 HD | Base |
| 2001-2002 | GMC | Sierra 2500 HD | SL |
| 2001-2005 | GMC | Sierra 2500 HD | SLE |
| 2001-2005 | GMC | Sierra 2500 HD | SLT |
| 2003-2005 | GMC | Sierra 2500 HD | WT |
| 2002-2005 | GMC | Sierra 3500 | Base |
| 2001-2002 | GMC | Sierra 3500 | SL |
| 2001-2005 | GMC | Sierra 3500 | SLE |
| 2001-2005 | GMC | Sierra 3500 | SLT |
| 2004-2005 | GMC | Sierra 3500 | WT |
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Atlus
1340 Cobb Dr, Unit 1, Eustis, FL 32736
352-234-4458
Mon – Fri: 8:30 am – 4:30 pm
Sat: 9:00 am – 2:00 pm
Sun: Closed
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MagnaFlow Performance Exhaust Diesel Turbo Downpipe 15398 - Select 2001-2005 Chevrolet/GMC (V8-6.6L) 3in.
This product will be available soon, but you can pre-order now to get on the list before others!
US Based Support - In Florida
30 Days Satisfaction Guarantee
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Fits select 2001-2005 Chevrolet Silverado and GMC Sierra 2500 HD and 3500 models (V8-6.6L).
The MagnaFlow Performance Exhaust Diesel Turbo Downpipe 15398 is a high-flow replacement designed to connect directly near your turbocharger, reducing backpressure and improving exhaust gas velocity. Constructed from 100% corrosion-resistant stainless steel, this 3-inch diameter pipe is mandrel-bent to ensure consistent flow throughout the bend without the restrictions found in factory press-bent tubing. Each unit is produced using precision CNC robotic manufacturing techniques for exact fitment and weight optimization.
- 3-inch mandrel-bent stainless steel tubing for superior flow characteristics
- Precision CNC robotic manufacturing ensures a perfect fit
- Durable, corrosion-resistant stainless steel construction
- Weight-optimized design specifically for Duramax diesel applications
- Designed to replace the restrictive factory turbo downpipe
- Manufacturer Part Number: 15398
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2001-2005 | Chevrolet | Silverado 2500 HD | Base |
| 2001-2005 | Chevrolet | Silverado 2500 HD | LS |
| 2001-2005 | Chevrolet | Silverado 2500 HD | LT |
| 2003-2005 | Chevrolet | Silverado 2500 HD | WT |
| 2001-2005 | Chevrolet | Silverado 3500 | Base |
| 2001-2005 | Chevrolet | Silverado 3500 | LS |
| 2001-2005 | Chevrolet | Silverado 3500 | LT |
| 2004 | Chevrolet | Silverado 3500 | WT |
| 2002-2005 | GMC | Sierra 2500 HD | Base |
| 2001-2002 | GMC | Sierra 2500 HD | SL |
| 2001-2005 | GMC | Sierra 2500 HD | SLE |
| 2001-2005 | GMC | Sierra 2500 HD | SLT |
| 2003-2005 | GMC | Sierra 2500 HD | WT |
| 2002-2005 | GMC | Sierra 3500 | Base |
| 2001-2002 | GMC | Sierra 3500 | SL |
| 2001-2005 | GMC | Sierra 3500 | SLE |
| 2001-2005 | GMC | Sierra 3500 | SLT |
| 2004-2005 | GMC | Sierra 3500 | WT |
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