Case Half Sets

Case Half Sets

IAG Performance carries Subaru engine case half sets for WRX, STI, BRZ, GR86, Legacy GT, and Forester XT EJ20, EJ25, and FA20 engines, including IAG Performance billet aluminum and closed-deck case halves built to handle serious horsepower. These cases are CNC-machined from billet stock and line-honed for precision fit, giving engine builders a stronger alternative to factory open-deck cases when chasing high boost and high RPM.

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