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Subaru OEM Case Half Set 15-18 WRX IAG Stage 1 FA20 DIT Short Block for 2015-18 Subaru WRX IAG Stage 2 FA20DIT Short Block 15-18 Subaru WRX
Bare Case Halves 550BHP 600BHP
IAG Stage 2.5 FA20 DIT Closed Deck Short Block 2015-18 Subaru WRX IAG Stage 3 Extreme FA20 DIT Closed Deck Short Block 2015-19 Subaru WRX
675BHP 800BHP