I've purchased about 19 diverse engines from J&J motors and to date only one in their motors has ever damaged down on me, and hat was just after about 6 months use. They had been fast to form it out and obtain me a substitute product, less than their warranty. https://httpsjdmengineforsalecomp90874.angelinsblog.com/33353908/not-known-details-about-https-jdmengineforsale-com-product-jdm-mazda-rx-7-fd-13b-rew-engine-for-sale