Wiseco 130.5mm BoostLine Connecting Rods Subaru WRX 2002-2014 / STI 2004-2021 | SB5137-905

Fitment: Works perfectly with 2002 - 2014 Subaru WRX and 2004 - 2021 Subaru STI, designed only for Subaru EJ20/EJ25 Turbo Engines. Features: The patent - pending 3 - pocket design is engineered for demanding turbocharged, supercharged, and big nitrous applications. Ideal for high - horsepower engines, it offers 60% more bending strength than common H - beam rods. Each rod is designed, finished, and inspected in the USA (Mentor, Ohio), and comes with an inspection report from Wiseco's quality team. The BoostLine connecting rods combine the best of H - and I - beam rods. Despite being for heavy - duty use, they're relatively light without sacrificing strength. Key Features: Specifically designed for high - horsepower forced induction and nitrous applications, 130.5mm profile, 60% more bending strength than H - Beam, patent - pending high - strength 3 - pocket design, machined from premium 4340 forged steel, includes high - quality ARP Bolts, inspected and finished in the USA, sold as a set of four.

How to Use: Install these connecting rods following your vehicle's standard engine assembly process. Make sure to use the included high - quality ARP Bolts and torque them to the manufacturer's specifications. Note that these rods are only for Subaru EJ20/EJ25 Turbo Engines. So, double - check your engine type before installation. Maintenance: Regularly inspect the rods for any signs of wear or damage. Keep them clean from dirt and debris. If you notice any issues like excessive wear or cracks, replace the rods immediately. These rods are designed for high - performance applications, so if you're using them in a high - stress environment, more frequent inspections are recommended.