Testing Powerhouse Racing S1 Cast Manifold vs Welded Tubular Manifold | RS Garage

In the video Jay compares the new PHR S1 Cast Manifold against the tried and true PHR S Series Welded Tubular manifold. This video is packed with lot of Data showing the results. We hope you enjoy! If you are interested in any of the products seen in this video visit out website. Thank you for watching. Website: www.RSGarage.us Instagram: @RSGarage.US Contact us: [email protected]