1.★The turbine blade of turbocharger in our factory is made of rare metal nickel, which has high temperature resistance, long service time and high power 2.★The turbocharger volute produced by our factory is made of high quality silicon molybdenum, which can not creep under high temperature and prolong its service life. 3.★Each turbocharger produced by our factory can only be sold if the quality is qualified after high-precision static and dynamic balance. 4.★Before purchasing a high-quality turbocharger, please check the picture carefully. The necessary accessories for the installation are already in place and easy to install. It is recommended to find a professional master to install. 5.★He oil and oil filter and air filter must be replaced before installation, and then high-quality turbochargers must be installed. The clamps on the pipes must be tightened during installation. The pipes must not leak gas or the pipes are slightly blocked inside. If you have any questions, please send an email 6.Warranty 90 days warranty from the purchase date