Subaru FA20 H-Tuff Connecting Rods by Manley Manley has released their H-Tuff Connecting Rods for the Subaru FA20 engine. These connecting rods were designed for elevated boost and higher power levels. These rods were created to bridge the gap between Manley's standard, proven H-Beams and top of the line Turbo Tuff® Series rods. H-Tuff delivers a stronger rod with greater safety margin to handle elevated boost and higher power levels for a modest price premium over standard H-Beams. Manley's H-Tuff design incorporates wider beam and increased cross-sectional thickness in critical areas. These connecting rods are heat treated, stress relieved, shot peened, and 100% individually magnafluxed. H-Tuff delivers a stronger rod with greater safety margin to handle elevated boost and higher power levels for a modest price premium over standard H-Beams. Manley's H-Tuff design incorporates wider beam and increased cross-sectional thickness in critical areas. These connecting rods are heat treated, stress relieved, shot peened, and 100% individually magnafluxed. Features Manufactured from 4340 forgings Weight matched sets + 1.5 grams Center to Center: 5.090" Big End Bore: 2.087" Big End Width: 0.843" Pin Diameter: 0.866" Pin Bore: 22mm Applications 2015+ Subaru WRX FA20 2013-2021 Subaru BRZ FA20 What's In The Box? 4 - Manley H-Tuff Connecting Rods Warranty Manufacturer Standard Warranty