Skunk2 Alpha Series Subaru EJ25 Connecting Rods - 306-12-1000

Alpha Series Rods are forged from select 4340 chromoly steel and feature an H-beam design, resulting in the ultimate strength-to-weight ratio. 4340 chromoly is one of the strongest materials available, however, not all 4340 chromoly is the same. As such, Skunk2 relies on extensive material testing and works closely with its foundry to produce high-quality rods at an affordable price. Comprehensive heat-treating, tempering, and shot-peening processes together ensure that each Alpha Series Rod remains consistent and strong. Finally, each rod is magna-fluxed to ensure integrity and that each process has been completed thoroughly and according to Skunk2’s rigid specifications. Skunk2’s engineers spent nearly three years developing and testing its H-beam rod design. The results are one of the strongest beam configurations available, capable of handling more than 900 hp. Engineers made use of FEA (Finite Element Analysis) to determine high-stress points and implemented features to reduce wear and increase strength. Skunk2’s straight design distributes stress across a larger area when compared to tapered rods, providing additional support where necessary. Alpha Series Rods are manufactured from two-piece forgings, resulting in optimal grain orientation along the rod cap for increased strength. By orienting the metal’s grain in the direction of stress along the rod cap, perpendicular to the stress exerted along the beam, strength is significantly increased. Skunk2’s two-piece forgings provide a precision-tight fit between the rod’s cap and its beam without resorting to the brittle materials required by other processes. Alpha Series Rods also feature dual oil passages at their pin ends, providing additional lubrication and cooling, which leads to an even stronger, more durable rod. Unlike other designs, Skunk2’s carefully positioned, offset oil passages help deliver lubrication around the entire wrist pin, during each phase of the engine cycle.

Whether its for a full rebuild or some standard maintenance, the proper engine components are needed to make sure your vehicle is running smooth.

Connecting rods connect your engine's pistons to the crankshaft. Replacing your connecting rods doesn't necessarily add horsepower, however they are essential for maintaining horsepower. If your are looking to boost your car and make high numbers of power, we strongly recommend replacing your OEM connecting rods with a stronger aftermarket setup.

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All Skunk2 products are carefully planned and designed in-house using the latest computer simulation and modeling techniques, followed by careful testing in controlled laboratory environments using state-of-the-art equipment. Each product is then subjected to rigorous dyno, street, and race track testing to ensure proper performance in the most extreme conditions. For these reasons, top street cars and race cars worldwide rely on Skunk2 products. As part of Skunk2’s commitment to developing industry-leading products, we’ve remained actively involved in various forms of motorsports through technical partnerships, sponsorships, as well as with our own race vehicles for more than 15 years. We’ve gone on to secure a number of drag racing and road racing records and championships, including earning the title of the world’s first 10-second naturally aspirated Honda. Racing provides us with the data necessary to produce high-performance parts utilizing innovative designs, advanced metal alloys, cutting-edge manufacturing methods, and stringent quality-control measures. Driven by the desire to make things go faster, Skunk2’s staff is comprised of industry leaders, racers, and enthusiasts who are passionate about what they do and understand what other enthusiasts want. Our perspective is shaped by real-world racing experiences as well as by practical science, and that's precisely what makes Skunk2 products so good. Firmly grounded in our understanding of engineering, we make every effort to embrace advanced technology. Our goal is to make performance and technology accessible to other enthusiasts through innovative manufacturing techniques. Since 1994, we’ve released a number of industry-leading products, including the first cast aluminum, high-performance intake manifold, cutting-edge composite fuel rails, and valvetrain components made from premium materials. Skunk2 is acclaimed as being the first U.S.-based sport compact parts manufacturer to offer CNC-machined, adjustable cam gears in 1995 as well as billet camshafts in 1999. As a result of continually pushing our engine development capabilities in the racing world, we’ve discovered a number of exciting “power secrets” that are incorporated into every Skunk2 product. Today we continue our tradition of creating leading-edge products through a state-of-the-art engineering and R&D department as well as through extensive engine development and testing both on the race track and the street.

• 2004 Subaru Forester XT
• 2004 Subaru Baja Turbo
• 2005 Subaru Baja Turbo
• 2005 Subaru Legacy GT
• 2005 Subaru Legacy GT Limited
• 2005 Subaru Outback XT
• 2005 Subaru Forester XT
• 2005 Subaru Forester XT Premium
• 2005 Subaru Outback XT Limited
• 2006 Subaru Baja Turbo
• 2006 Subaru Impreza WRX
• 2006 Subaru Impreza WRX Limited
• 2006 Subaru Impreza WRX TR ( 4 door Sedan, 230HP 4 Cylinder Turbocharged 2.5L, AWD 5speed Manual)
• 2006 Subaru Legacy GT
• 2006 Subaru Legacy GT spec.B ( 4 door Sedan, 230HP 4 Cylinder Turbocharged 2.5L, AWD 5speed Manual)
• 2006 Subaru Forester XT Limited
• 2006 Subaru Outback XT
• 2006 Subaru Outback XT Limited
• 2007 Subaru Impreza WRX
• 2007 Subaru Impreza WRX Limited
• 2007 Subaru Impreza WRX TR ( 4 door Sedan, 230HP 4 Cylinder Turbocharged 2.5L, AWD 5speed Manual)
• 2007 Subaru Legacy GT Limited
• 2007 Subaru Legacy GT spec.B ( 4 door Sedan, 230HP 4 Cylinder Turbocharged 2.5L, AWD 6speed Manual)
• 2007 Subaru Forester XT Limited
• 2007 Subaru Outback XT Limited
• 2008 Subaru Impreza WRX
• 2008 Subaru Legacy GT Limited
• 2008 Subaru Legacy GT spec.B ( 4 door Sedan, 230HP 4 Cylinder Turbocharged 2.5L, AWD 6speed Manual)
• 2008 Subaru Forester Sports 2.5 XT
• 2008 Subaru Forester XT Limited
• 2008 Subaru Outback XT Limited
• 2009 Subaru Impreza 2.5 GT ( 4 door Sedan, 230HP 4 Cylinder Turbocharged 2.5L, AWD 4speed Automatic)
• 2009 Subaru Impreza WRX
• 2009 Subaru Impreza WRX Premium
• 2009 Subaru Legacy GT Limited
• 2009 Subaru Legacy GT spec.B ( 4 door Sedan, 230HP 4 Cylinder Turbocharged 2.5L, AWD 6speed Manual)
• 2009 Subaru Forester XT ( 4 door Sport Utility, 230HP 4 Cylinder Turbocharged 2.5L, AWD 4speed Automatic)
• 2009 Subaru Forester XT Limited ( 4 door Sport Utility, 230HP 4 Cylinder Turbocharged 2.5L, AWD 4speed Automatic)
• 2009 Subaru Outback XT Limited
• 2010 Subaru Legacy 2.5GT ( 4 door Sedan, 230HP 4 Cylinder Turbocharged 2.5L, AWD 6speed Manual)
• 2010 Subaru Impreza 2.5 GT
• 2010 Subaru Impreza WRX
• 2010 Subaru Impreza WRX Limited
• 2010 Subaru Impreza WRX Premium
• 2010 Subaru Forester XT Limited ( 4 door Sport Utility, 230HP 4 Cylinder Turbocharged 2.5L, AWD 4speed Automatic)
• 2010 Subaru Forester XT Premium ( 4 door Sport Utility, 230HP 4 Cylinder Turbocharged 2.5L, AWD 4speed Automatic)
• 2011 Subaru Impreza WRX
• 2011 Subaru Impreza WRX Limited
• 2011 Subaru Impreza WRX Premium
• 2011 Subaru Legacy 2.5GT ( 4 door Sedan, 230HP 4 Cylinder Turbocharged 2.5L, AWD 6speed Manual)
• 2011 Subaru Forester XT Premium ( 4 door Sport Utility, 230HP 4 Cylinder Turbocharged 2.5L, AWD 4speed Automatic)
• 2011 Subaru Forester XT Touring ( 4 door Sport Utility, 230HP 4 Cylinder Turbocharged 2.5L, AWD 4speed Automatic)
• 2012 Subaru Impreza WRX
• 2012 Subaru Impreza WRX Limited
• 2012 Subaru Impreza WRX Premium
• 2012 Subaru Legacy 2.5GT ( 4 door Sedan, 230HP 4 Cylinder Turbocharged 2.5L, AWD 6speed Manual)
• 2012 Subaru Forester XT Premium ( 4 door Sport Utility, 230HP 4 Cylinder Turbocharged 2.5L, AWD 4speed Automatic)
• 2012 Subaru Forester XT Touring ( 4 door Sport Utility, 230HP 4 Cylinder Turbocharged 2.5L, AWD 4speed Automatic)
• 2013 Subaru Impreza WRX
• 2013 Subaru Impreza WRX Limited
• 2013 Subaru Impreza WRX Premium
• 2013 Subaru Forester XT Premium ( 4 door Sport Utility, 230HP 4 Cylinder Turbocharged 2.5L, AWD 4speed Automatic)
• 2013 Subaru Forester XT Touring ( 4 door Sport Utility, 230HP 4 Cylinder Turbocharged 2.5L, AWD 4speed Automatic)
• 2014 Subaru Impreza WRX
• 2014 Subaru Impreza WRX Limited
• 2014 Subaru Impreza WRX Premium