B Series B16 B18 B20 Manual Timing Belt Tensioner For Honda Acura Civic GSR SiB Series B16 B18 B20 Manual Timing Belt Tensioner For Honda Acura Civic GSR Si Applications: All B Series Honda Acura engines. Please note that power steering must be deleted and the timing belt cover must be removed. We developed our Manual timing belt tensioner because all the available ones that are for sale on the market have many fitment issues that require the end user to modify or trim part of the cylinder head and block if you install one of