Fits: 2017 thru 2026 Chevy Silverado/GMC Sierra 2500/3500HD L5P Duramax Diesel 

Take the performance of your 6.6L L5P Duramax diesel engine equipped 2017-2026 Chevy Silverado / GMC Sierra 2500/3500 HD truck to the next level with this  High Flow Y-Bridge Kit from Wehrli Custom Fabrication. This upper intake manifold represents the culmination of years of R&D experience, pushing this GM platform to its limits- engineered to maximize airflow, improve efficiency, and support everything from stock trucks to high-horsepower builds while addressing critical weak points. This kit provides an emissions-compatible, Made in the USA part delivering 33% More Air Flow than OEM and requiring no additional tuning for installation.  Additional benefits include evenly distributed charged air to both engine cylinder heads and specially designed ports to help protect the engine MAP sensor(s) from harmful oil and soot buildup.

Features:

• Flows 33% better than stock
• Improves throttle response, turbo spool-up, and engine efficiency
•  Evenly distributes airflow to engine cylinder heads (stock splits 70% Driver / 30% Passenger)
• Cast in the USA from high-quality 356 Aluminum. 
• Compatible with 2017- 2022 Single and 2023-2026 Dual MAP Sensor Engine Systems
• No Spacers Needed - Integrated MAP Sensor mounting bosses move sensing element
• No Tuning Required
• Compatible with stock trucks

Notes:

• 15+ Business Days Before Shipment. This is a custom order part; once the order has been processed, it CANNOT be canceled, returned, or refunded
• If you enter a powdercoat color that is not listed on the chart, your order will be delayed, as we will have to contact you to discuss the options. RAW Finish is NOT available!

• THE MANUFACTURE, SALE, OFFER FOR SALE, OR INSTALLATION OF THIS PRODUCT IS NOT LEGAL IN CALIFORNIA