Chevrolet Silverado 3500 Turbocharger Down Pipes

100% TIG-Welded by certified craftsmen for race proven strength and durability. TIG-Welding provides the strongest welds reducing stress cracks. Paired opposite firing cylinders with equal, specifically tuned primary lengths maximizes scavenging and increases torque throughout the powerband. High grade stainless tubing with a uniform brushed finish provides a beautiful look and high resistance to corrosion. aFe has designed this system to retain all your factory sensors for a hassle free installation. Also included are extensions for a simple plug & play installation. High quality laser cut header flanges provides superior sealing at the head surface. Machined flanges and USA made stainless v-band clamps provide a simple to install leak free joint between the headers and X-pipe. A direct bolt-on system which requires no cutting or drilling to provide a hassle-free installation. This system is constructed of mandrel bent, stainless steel brushed tubing for maximum performance, corrosion resistance and strength eliminating cracking. This system includes dual, hi-flow, 200 CPSI, stainless steel catalytic converters for maximum flow and performance. aFe PFADT Series Headers & X-Pipes are engineered and manufactured in our Corona, California manufacturing facility. This system is not currently CARB exempt and is not available for sale in California or for use on any vehicle registered with the California Department of Motor Vehicle.

Product Features:

• Gain of 8 HP/ 7LBS Torque
• 48 State Legal Converter
• Durable Mandrel Bent Brushed Stainless Steel
• HD Flex Tube w/Interlock Liner For Added Durability

Optimize your 01-04 LB7 GM diesel’s airflow to improve throttle response with aFe’s ATLAS 3″ turbo down-pipe. Constructed from 3″ mandrel bent steel tubing for maximum flow, the larger tube diameter and smooth transition bends allow increased airflow between your OE turbo and exhaust to reduce EGT’s for quicker turbo spool times. The CNC machined heavy duty inlet flange with turbine gasket and V-band outlet flange ensure an OE-style, 360 degree sealing surface. Coated with a black finish, the ATLAS turbo down-pipe is wrapped with thermal header tape to reduce EGT’s for improved performance and durability. Flow and Performance: The ATLAS turbo down-pipe is made from 3″ mandrel bent steel tubing offering smoother transition bends for low turbulence to deliver quicker throttle response. Perfect Fit: The ATLAS turbo down-pipe is an upgrade to the OE down-pipe and utilizes the factory mounting locations for true bolt-on performance. Finish: This down pipe is coated with a black finish and wrapped in thermal header tape for better insulation. This reduces EGT’s and under hood temperatures. Note: This system is not currently CARB exempt or available for sale in California, and cannot be used on any vehicle registered with the California Department of Motor Vehicle. This item in not legal in NY for use on vehicles with CA emissions.

Product Features:

• Mandrel Bent Black Finished Steel For Long Lasting Good Looks
• Replaces OE Down-Pipe For True Bolt-On Performance
• Wrapped in High Temp Thermal Tape For Insulation
• CNC Machined V-Band Inlet/Outlet Flange

Designed to replace the often crimped and restrictive OEM pipe that comes off the turbocharger outlet. Mandrel bent for maximum flow. Kits include necessary installation hardware.

The MagnaFlow Turbo Downpipe 15399 is a 4in. diameter mandrel bent stainless steel pipe designed to connect near your turbocharger and i’s weight-optimized with superior flow characteristics and performance. Each performance pipe is produced using precision CNC robotic manufacturing techniques and features 100% durable, corrosion resistant stainless steel construction. Professional installation is highly recommended.

Product Features:

• Mandrel bent tubing
• CNC precision robotic manufacturing techniques
• Durable corrosion-resistant stainless steel construction