My son will need an engine for his car or truck so we took a chance ,and all I'm able to say is so far so superior .it was sent inside a timely fashion and when we obtained it in and connected and every thing that that goes with that https://httpsjdmengineforsalecomp14532.wikibestproducts.com/1395113/the_ultimate_guide_to_https_jdmengineforsale_com_product_jdm_mazda_rx_7_fd_13b_rew_engine_for_sale