The HSP 2 Inch Replacement Passenger Side Up-Pipe for the 2017-2026 Duramax L5P is designed to improve reliability, increase exhaust flow, and eliminate common factory failure points. Whether your truck is stock or modified, this upgrade helps improve durability while supporting increased performance.

Factory up-pipes on Duramax trucks are known for failures at the bellows, leading to exhaust leaks, higher exhaust gas temperatures, reduced turbo efficiency, and loss of power. Over time, warped flanges and failing gaskets can further compound these issues.

HSP Diesel designed this replacement up-pipe to solve those problems while increasing overall exhaust flow.

The up-pipe is responsible for directing exhaust gases from the exhaust manifold to the turbocharger. Restrictive or leaking factory components limit turbo efficiency and performance.

The HSP 2 Inch Up-Pipe uses a high-flow design combined with heavy-wall 304 stainless steel construction and reinforced sleeved bellows to improve durability and airflow. The result is faster spool-up, lower EGTs, increased torque, and improved reliability under demanding conditions.

Constructed from heavy-wall 304 stainless steel tubing, the HSP up-pipe is built to withstand extreme heat and pressure far better than factory components. The reinforced heavy-duty sleeved bellows improve longevity while maintaining flexibility under thermal expansion.

The increased 2 Inch flow path helps reduce exhaust restriction, allowing the turbocharger to operate more efficiently for improved performance and throttle response.

• 1x 2 Inch Replacement Passenger Side Up-Pipe (HSP-IN-360)
• 1x Turbo Side Up-Pipe Gasket (RFB-350-RFAB)
• 1x Manifold Side Up-Pipe Gasket (RFB-351-RFAB)

• 2017-2026 Chevrolet Silverado 2500 / 3500 HD 6.6L Duramax L5P
• 2017-2026 GMC Sierra 2500 / 3500 HD 6.6L Duramax L5P

• L5P: VIN Code Y

The engine code is determined by the 8th character of the VIN number. The 10th character indicates the model year of the vehicle.

• Improved reliability and durability
• Faster turbo spool-up
• Lower exhaust gas temperatures (EGTs)
• Improved exhaust flow
• Heavy-duty sleeved bellows
• Heavy-wall 304 stainless steel construction
• Direct replacement fitment
• Includes both required gaskets

Details:

• Category: Exhaust Up Pipe
• Fits: 2017-2026 Siverado/Sierra 2500/3500 HD
• Location: Passenger Side
• Fuel Type: Diesel
• Engine Manufacturer: Duramax
• Engine Designation: L5P
• Material: 304 Stainless Steel
• Liter: 6.6L
• Finish: Raw
• Sold As: Each
• Vehicle Make: Chevy / GMC
• Engine Years: 2017-2026
• Universal: No