I've purchased about 19 different engines from J&J motors and thus far only one in their motors has at any time damaged down on me, and hat was following about 6 months use. They had been swift to kind it out and get me a alternative model, beneath their guarantee. https://lukasdyqhx.shivawiki.com/7272899/detailed_notes_on_https_jdmengineforsale_com_product_jdm_mazda_rx_7_fd_13b_rew_engine_for_sale