** NOTE: 4 CYL SET. IF YOU NEED 5 CYL SET PLEASE ORDER CZ-VWGTI1A65670-5Every Carrillo connecting rod is a symphony of precision: material specialist, forging precision, production craftsman, design engineers and engine specialists.Carrillo rods are under the control of a rigorous Quality Assurance system. Each Carrillo rod is subjected to a variety of inline quality checks to ensure dimensions and meet stringent tolerance requirements. Carrillo employs a variety of testing equipment to accurately assess these tolerances, including a CMM, Air and Height-Gages and a 2D measuring system to name just a few. The initial quality assurance starts with the selection of steel, followed by a strict forging and a heat treating process.Every connecting rod leaves Carrillo's facility with a specification card. This card displays a part number, critical dimensions, weights, job number and bolt installation chart; all for ease of identification and tracking.Carrillo Connecting Rods.....the best you can get !