Considerably to my shock They are really just what the say They're enthusiastic about there product and there that can help threw The entire system with curtacy and persistence many of the way threw Bought my current 3S-GTE swap from the folks at JCDC Automotive. They did the compression check https://archeruuutk.wizzardsblog.com/37722298/how-https-jdmengineforsale-com-product-toyota-mr2-celica-3sgte-engine-can-save-you-time-stress-and-money