Installation Time
(approx) a Day
Difficulty Level:
Mechanical expertise or professional installation required.
Installation Guides
No guide available for this part yet.
FREE 1 to 3-Day Delivery on Orders $119+ Details
Features, Description, Reviews, Q&A, Specs & Installation
Optimum Horsepower. The RHS Stage 2 Naturally Aspirated Intake Manifold and Camshaft Package for GM LS Cathedral Port Engines is the Stage 2 intake manifold and camshaft kit you want if you’re looking to optimize your GM LS engine’s performance. Specifically, this intake manifold and camshaft package are engineered to maximize airflow entering your cathedral ported engine. In doing so, this kit will provide your Silverado 3500 with outstanding gains in horsepower while still maintaining ideal low-end torque.
All-In-One Kit. At the heart of this kit is an intake manifold fabricated from sheet metal, making it lighter when compared to typical cast allow manifolds. Likewise, the included camshaft is engineered for improved responsiveness and comes with a set of beehive valve springs for outstanding performance. What’s more, this kit also includes a 102mm inlet throttle body, ensuring your new setup receives all the air it needs.
Heavy-Duty Build Quality. This kit’s intake manifold is precision-fabricated and expertly welded from heavy gauge sheet metal creating a lightweight yet strong unit. Likewise, the included camshaft is machined from hardened metal alloy for smooth operation. Finally, the manifold is finished in a specialized black powder coating for outstanding corrosion protection that also gives your engine bay a sleek style.
Professional Installation Recommended. Installing this intake manifold and camshaft package will require you to disassemble your engine’s cylinder head similar to performing a top overhaul. This process will require expert-level mechanical knowledge and skills as well as a complete set of mechanics tools. If you are not experienced with this type of installation, professional installation is always an option.
Comes with a Limited 1-Year Warranty. This RHS Stage 2 intake manifold and camshaft kit comes with a limited 1-year warranty covering manufacturing defects. Please visit the RHS website for other details.
Application. The RHS Stage 2 Naturally Aspirated Intake Manifold and Camshaft Package for GM LS Cathedral Port Engines fits all 2015-2019 6.0L Chevrolet Silverado 3500 HD models.
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation Info
Installation Time
(approx) a Day
Difficulty Level:
Mechanical expertise or professional installation required.
Installation Guides
No guide available for this part yet.
What's in the Box