BoostLine Connecting Rods are your best option for any high horsepower 4-cylinder engine. Our engineering team created this new, patented 3-pocket design specifically for demanding turbocharged applications. BoostLine Connecting Rods provide 60% more bending strength compared to common H-beam rods! Each rod is designed, finished and inspected in the USA and includes a detailed inspection report generated on our Zeiss Coordinate Measuring Machine (CMM). Machined from premium 4340 forged steel. High quality ARP Bolts included.