Manley Turbo Tuff Connecting Rod Set w/ ARP 625+ Bolts Subaru WRX 02-05 / STI 04-21 | 14416R6-4

Fitment: This connecting rod set is a perfect fit for 2002 - 2005 Subaru WRX and 2004 - 2021 Subaru STI. Please note these rods are for EJ255 engines only when paired with an aftermarket piston that doesn't need a tapered connecting rod.Features: Manley Performance is a leader in the Sport Compact industry, crafting top - notch steel connecting rods. The Pro Series 'I' Beam is forged from 4340 aircraft - grade vacuum - degassed material. The proven 'Turbo Tuff' design is combined with 3/8' ARP 2000 cap screws. After machining, all rods are shot peened and 100% magnafluxed. These Turbo Tuff connecting rods are trusted by top tuners in high - performance engines across the US and beyond. All sets are weight - matched to ± 1.5 grams. Big and small end bores are honed to a tolerance of ± .0002', with strict control over bend and twist. Every detail is carefully inspected, ensuring a product of the highest quality. It comes as a set of four (4) connecting rods, suitable for Subaru EJ205 and EJ257 engines.Specs: Big End Bore: 2.165'. Big End Width: .840'. Center - to - Center: 5.141'. Pin Bore: .9063'. Pin Diameter: .905' (23mm). Weight: 613g.

Using this Manley Turbo Tuff Connecting Rod Set is straightforward. First, make sure your vehicle is a 2002 - 2005 Subaru WRX or 2004 - 2021 Subaru STI. If you're using it in an EJ255 engine, you must use an aftermarket piston that doesn't require a tapered connecting rod. When installing, handle the rods carefully as they are precision - made. Pay attention to the weight - matching of the rods, which ensures smooth engine operation. Also, follow the correct torque specifications for the ARP 625+ bolts. For maintenance, regularly check the rods for any signs of wear or damage. Keep them clean and dry to prevent corrosion. If you notice any unusual noises or performance issues, have the rods inspected by a professional mechanic right away.