Pay in 4 interest-free payments of $500.00 Learn more
Ships within 48 hours · Estimated delivery Oct 6 - Oct 11
Compression Ratio:
System updates through mobile app
HOW DOES THE AOS FUNCTION AND WHAT'S INSIDE
Springs / Retainers - Kelford Dual Valve Springs & Titanium Retainers
8% higher than the OEM 12mm Oil Pump
IAG 550 2.5L Subaru Short Block for WRX, STI, Legacy GT, Forester XT - 550 BHP Oil Pump:None Compression Ratio:LEAD TIMES 4 6 WEEKS DESIGNED FOR STRENGTH The IAG 550 Short Block is designed for modified EJ25 Subarus that need a stronger short block to support increased cylinder pressures created by additional boost pressure. The IAG 550 short block features IAG Spec H Beam forged connecting rods. The upgraded connecting rods and race bearings are able to support additional engine load produced by larger turbochargers or increased boost which the OEM STI rods
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