GM Duramax 6.6L Intake Bridge (2011-2016)
Type: Intake Elbow | Fits: GM Duramax

TheΒ Duramax 6.6L Intake Bridge Kit is engineered to improve airflow and overall engine efficiency for 2011β2016 GMC Sierra and Chevrolet Silverado 2500/3500 HD trucks. Featuring precision mandrel-bent aluminum tubing and billet aluminum plates, this kit enhances performance while retaining the factory heater grid and throttle valve for reliable cold starts.
Vehicle Fitment
- β 2011 GMC Sierra 2500/3500HD 6.6L Duramax
- β 2012 GMC Sierra 2500/3500HD 6.6L Duramax
- β 2013 GMC Sierra 2500/3500HD 6.6L Duramax
- β 2014 GMC Sierra 2500/3500HD 6.6L Duramax
- β 2015 GMC Sierra 2500/3500HD 6.6L Duramax
- β 2016 GMC Sierra 2500/3500HD 6.6L Duramax
- β 2011 Chevrolet Silverado 2500/3500HD 6.6L Duramax
- β 2012 Chevrolet Silverado 2500/3500HD 6.6L Duramax
- β 2013 Chevrolet Silverado 2500/3500HD 6.6L Duramax
- β 2014 Chevrolet Silverado 2500/3500HD 6.6L Duramax
- β 2015 Chevrolet Silverado 2500/3500HD 6.6L Duramax
- β
2016 Chevrolet Silverado 2500/3500HD 6.6L Duramax
β οΈ Not compatible with Cab & Chassis configurations
Specifications
Feature | Details |
---|---|
Tubing | Precision mandrel-bent aluminum for optimized airflow |
Plates | CNC billet aluminum for strength and longevity |
Reliability | Retains OEM heater grid and throttle valve for cold start performance |
Kit Contents | Intake bridge, resonator block-off plate, hardware, gaskets |
Application | Designed for off-road/competition use only |
Key Features
- Optimized Airflow β Mandrel-bent aluminum tubing delivers smoother intake flow.
- Billet Aluminum Plates β Precision-machined for durability and perfect fit.
- Cold Start Reliability β Retains heater grid and throttle valve for easy starting.
- Complete Kit β Includes all required hardware, gaskets, and block-off plate.
- Durable Build β Made to withstand extreme temperatures and boost conditions.
Benefits
- Boosts intake efficiency and throttle response
- Enhances performance under load or tuning
- Extends engine reliability with stronger materials
- Clean, professional under-hood appearance
Installation
This kit can be installed with basic hand tools in a home garage, but professional installation is recommended for best results. Cutting or modifications are not required.
Important Notes:
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Return Policies
Your satisfaction is important to us. If you wish to return an item or request a refund, please review the terms and conditions outlined in our Returns Policy.
Important Notices
- OffβRoad Use Only
Products sold by JS Speed are intended for offβroad use and may be illegal on public roads where emissions or pollutionβcontrol laws apply. - Check Local Laws
Before purchasing or installing, verify all applicable local, state/provincial, and federal regulations to ensure the modification is legal in your area. - Professional Installation Recommended
These parts should be installed by qualified professional mechanics. Improper installation can cause performance issues or vehicle damage. Unless a product page explicitly states otherwise, installation instructions are not included. Components are designed for users with solid mechanical knowledge, and minor adjustments or modifications may be required for proper fitment. Returns or refunds cannot be accepted due to difficulty completing an installation or the absence of instructions. - Warranty Impact
Use of these parts may void your vehicleβs factory warranty. Confirm with your vehicle manufacturer before purchase and installation. - Limitation of Liability
JS Speed is not responsible for damage, failures, or issues arising from the use or installation of these products. - Product Images
Images are for illustration only and may differ from the actual product due to manufacturer updates or improvements. - No Performance Guarantees
While these products are designed to enhance performance, JS Speed does not guarantee specific performance results.

