Magnaflow Turbo Downpipe — 2001-2007 GM Silverado/Sierra 6.6L Diesel

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Magnaflow 15399 Turbo Downpipe for GM 6.6L Diesel

Unleash the full potential of your 2001-2007 GM Silverado or Sierra with the Magnaflow 15399 Turbo Downpipe. Engineered to optimize exhaust flow directly from the turbocharger, this downpipe is crafted from durable, corrosion-resistant stainless steel and features precise mandrel bends for maximum efficiency. Experience improved throttle response, increased horsepower, and a more aggressive exhaust note.

Key Features:

• Enhanced Flow: 4-inch diameter mandrel-bent stainless steel pipe maximizes exhaust gas velocity.
• Durable Construction: 100% stainless steel ensures resistance to rust and extreme temperatures.
• Performance Gains: Designed to improve turbo spool, reduce exhaust gas temperatures, and increase overall power output.
• Precision Fitment: Engineered for a direct fit on 2001-2007 Chevrolet Silverado 2500 HD, 3500, and GMC Sierra 2500 HD, 3500 models with the 6.6L Duramax diesel engine.
• Advanced Manufacturing: Produced using precision CNC robotic manufacturing techniques for consistent quality.

The Magnaflow 15399 Turbo Downpipe is an essential upgrade for diesel enthusiasts seeking to push the limits of their truck's performance. By reducing backpressure and improving exhaust scavenging, this downpipe allows your turbocharger to operate more efficiently, leading to noticeable gains in power and torque. Professional installation is recommended to ensure optimal performance and integration with your existing exhaust system.

Get your Magnaflow downpipe at GGCRACING today!