Each individual Pettit Built Renesis is blueprinted and Road ported with our proprietary mods which give additional cooling on the exhaust ports reducing facet housing area deformation at outer port edges, and also the area about primary spark plugs to the rotor housings. Mazda unveiled the final technology RX-seven in https://reidejlkh.snack-blog.com/26528588/the-smart-trick-of-jdm-mazda-engine-that-nobody-is-discussing