IAG Performance

IAG Performance Stage 2.5 FA20 Subaru Closed Deck Short Block (Standard Compression 12.5:1)

IAG Performance Stage 2.5 FA20 Subaru Closed Deck Short Block (Standard Compression 12.5:1)

Regular price $6,269.99 USD

Regular price ~~$6,269.99 USD~~ Sale price $6,269.99 USD
Unit price per
IAG Performance Stage 2.5 International Hybrid EJ25 Closed Deck Short Block, use w/ EJ20 Heads

IAG Performance Stage 2.5 International Hybrid EJ25 Closed Deck Short Block, use w/ EJ20 Heads

Regular price $5,389.99 USD

Regular price ~~$5,389.99 USD~~ Sale price $5,389.99 USD
Unit price per
IAG Performance Stage 3 EJ25 Closed Deck Case - 1/2" H.S.M. (No Bore / Hone)

IAG Performance Stage 3 EJ25 Closed Deck Case - 1/2" H.S.M. (No Bore / Hone)

Regular price $2,672.99 USD

Regular price ~~$2,672.99 USD~~ Sale price $2,672.99 USD
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IAG Performance Stage 3 EJ25 Closed Deck Case - 1/2" H.S.M. 99.75mm Bore & Hone

IAG Performance Stage 3 EJ25 Closed Deck Case - 1/2" H.S.M. 99.75mm Bore & Hone

Regular price $3,024.99 USD

Regular price ~~$3,024.99 USD~~ Sale price $3,024.99 USD
Unit price per
IAG Performance Stage 3 EJ25 Closed Deck Case - 11mm H.S.M. (No Bore / Hone)

IAG Performance Stage 3 EJ25 Closed Deck Case - 11mm H.S.M. (No Bore / Hone)

Regular price $2,419.99 USD

Regular price ~~$2,419.99 USD~~ Sale price $2,419.99 USD
Unit price per
IAG Performance Stage 3 EJ25 Closed Deck Case - 11mm H.S.M. 99.75mm Bore & Hone

IAG Performance Stage 3 EJ25 Closed Deck Case - 11mm H.S.M. 99.75mm Bore & Hone

Regular price $2,804.99 USD

Regular price ~~$2,804.99 USD~~ Sale price $2,804.99 USD
Unit price per
IAG Performance Stage 3 Extreme FA20 Subaru Closed Deck Short Block (10.5:1 Compression Ratio)

IAG Performance Stage 3 Extreme FA20 Subaru Closed Deck Short Block (10.5:1 Compression Ratio)

Regular price $6,599.99 USD

Regular price ~~$6,599.99 USD~~ Sale price $6,599.99 USD
Unit price per
IAG Performance Stage 3 Extreme FA20 Subaru Closed Deck Short Block (12.5:1 Compression Ratio)

IAG Performance Stage 3 Extreme FA20 Subaru Closed Deck Short Block (12.5:1 Compression Ratio)

Regular price $6,599.99 USD

Regular price ~~$6,599.99 USD~~ Sale price $6,599.99 USD
Unit price per
IAG Performance Stage 3 Magnum EJ25 Closed Deck Case - 14mm H.S.M. Fire-Lock, (No Bore & Hone)

IAG Performance Stage 3 Magnum EJ25 Closed Deck Case - 14mm H.S.M. Fire-Lock, (No Bore & Hone)

Regular price $2,914.99 USD

Regular price ~~$2,914.99 USD~~ Sale price $2,914.99 USD
Unit price per
IAG Performance Stage 3 Magnum EJ25 Closed Deck Case, 14mm H.S.M. Fire-Lock, 99.75mm Bore & Hone

IAG Performance Stage 3 Magnum EJ25 Closed Deck Case, 14mm H.S.M. Fire-Lock, 99.75mm Bore & Hone

Regular price $3,299.99 USD

Regular price ~~$3,299.99 USD~~ Sale price $3,299.99 USD
Unit price per
IAG Performance Stage 3 Pocket Ported Heads CM w/+1mm GSC Valves & GSC S2 Cams S20 Casting

IAG Performance Stage 3 Pocket Ported Heads CM w/+1mm GSC Valves & GSC S2 Cams S20 Casting

Regular price $6,269.99 USD

Regular price ~~$6,269.99 USD~~ Sale price $6,269.99 USD
Unit price per
IAG Performance Stage 3 Pocket Ported Heads w/ +1mm GSC Valves & GSC S2 Cams 25 Casting

IAG Performance Stage 3 Pocket Ported Heads w/ +1mm GSC Valves & GSC S2 Cams 25 Casting

Regular price $6,049.99 USD

Regular price ~~$6,049.99 USD~~ Sale price $6,049.99 USD
Unit price per
IAG Performance Stage 3 Pocket Ported Heads w/ +1mm GSC Valves & GSC S2 Cams D25 Casting

IAG Performance Stage 3 Pocket Ported Heads w/ +1mm GSC Valves & GSC S2 Cams D25 Casting

Regular price $6,049.99 USD

Regular price ~~$6,049.99 USD~~ Sale price $6,049.99 USD
Unit price per
IAG Performance Stage 3 Pocket Ported Heads w/ +1mm GSC Valves & GSC S2 Cams N25 Casting

IAG Performance Stage 3 Pocket Ported Heads w/ +1mm GSC Valves & GSC S2 Cams N25 Casting

Regular price $6,049.99 USD

Regular price ~~$6,049.99 USD~~ Sale price $6,049.99 USD
Unit price per
IAG Performance Stage 3 Pocket Ported Heads w/ +1mm GSC Valves & GSC S2 Cams S20 Casting

IAG Performance Stage 3 Pocket Ported Heads w/ +1mm GSC Valves & GSC S2 Cams S20 Casting

Regular price $6,049.99 USD

Regular price ~~$6,049.99 USD~~ Sale price $6,049.99 USD
Unit price per
IAG Performance Stage 3 Pocket Ported Heads w/ +1mm GSC Valves & GSC S2 Cams W25 Casting

IAG Performance Stage 3 Pocket Ported Heads w/ +1mm GSC Valves & GSC S2 Cams W25 Casting

Regular price $6,049.99 USD

Regular price ~~$6,049.99 USD~~ Sale price $6,049.99 USD
Unit price per

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Collection: IAG Performance

IAG Performance Stage 2.5 FA20 Subaru Closed Deck Short Block (Standard Compression 12.5:1)

IAG Performance Stage 2.5 FA20 Subaru Closed Deck Short Block (Standard Compression 12.5:1)

IAG Performance Stage 2.5 International Hybrid EJ25 Closed Deck Short Block, use w/ EJ20 Heads

IAG Performance Stage 2.5 International Hybrid EJ25 Closed Deck Short Block, use w/ EJ20 Heads

IAG Performance Stage 3 EJ25 Closed Deck Case - 1/2" H.S.M. (No Bore / Hone)

IAG Performance Stage 3 EJ25 Closed Deck Case - 1/2" H.S.M. (No Bore / Hone)

IAG Performance Stage 3 EJ25 Closed Deck Case - 1/2" H.S.M. 99.75mm Bore & Hone

IAG Performance Stage 3 EJ25 Closed Deck Case - 1/2" H.S.M. 99.75mm Bore & Hone

IAG Performance Stage 3 EJ25 Closed Deck Case - 11mm H.S.M. (No Bore / Hone)

IAG Performance Stage 3 EJ25 Closed Deck Case - 11mm H.S.M. (No Bore / Hone)

IAG Performance Stage 3 EJ25 Closed Deck Case - 11mm H.S.M. 99.75mm Bore & Hone

IAG Performance Stage 3 EJ25 Closed Deck Case - 11mm H.S.M. 99.75mm Bore & Hone

IAG Performance Stage 3 Extreme FA20 Subaru Closed Deck Short Block (10.5:1 Compression Ratio)

IAG Performance Stage 3 Extreme FA20 Subaru Closed Deck Short Block (10.5:1 Compression Ratio)

IAG Performance Stage 3 Extreme FA20 Subaru Closed Deck Short Block (12.5:1 Compression Ratio)

IAG Performance Stage 3 Extreme FA20 Subaru Closed Deck Short Block (12.5:1 Compression Ratio)

IAG Performance Stage 3 Magnum EJ25 Closed Deck Case - 14mm H.S.M. Fire-Lock, (No Bore & Hone)

IAG Performance Stage 3 Magnum EJ25 Closed Deck Case - 14mm H.S.M. Fire-Lock, (No Bore & Hone)

IAG Performance Stage 3 Magnum EJ25 Closed Deck Case, 14mm H.S.M. Fire-Lock, 99.75mm Bore & Hone

IAG Performance Stage 3 Magnum EJ25 Closed Deck Case, 14mm H.S.M. Fire-Lock, 99.75mm Bore & Hone

IAG Performance Stage 3 Pocket Ported Heads CM w/+1mm GSC Valves & GSC S2 Cams S20 Casting

IAG Performance Stage 3 Pocket Ported Heads CM w/+1mm GSC Valves & GSC S2 Cams S20 Casting

IAG Performance Stage 3 Pocket Ported Heads w/ +1mm GSC Valves & GSC S2 Cams 25 Casting

IAG Performance Stage 3 Pocket Ported Heads w/ +1mm GSC Valves & GSC S2 Cams 25 Casting

IAG Performance Stage 3 Pocket Ported Heads w/ +1mm GSC Valves & GSC S2 Cams D25 Casting

IAG Performance Stage 3 Pocket Ported Heads w/ +1mm GSC Valves & GSC S2 Cams D25 Casting

IAG Performance Stage 3 Pocket Ported Heads w/ +1mm GSC Valves & GSC S2 Cams N25 Casting

IAG Performance Stage 3 Pocket Ported Heads w/ +1mm GSC Valves & GSC S2 Cams N25 Casting

IAG Performance Stage 3 Pocket Ported Heads w/ +1mm GSC Valves & GSC S2 Cams S20 Casting

IAG Performance Stage 3 Pocket Ported Heads w/ +1mm GSC Valves & GSC S2 Cams S20 Casting

IAG Performance Stage 3 Pocket Ported Heads w/ +1mm GSC Valves & GSC S2 Cams W25 Casting

IAG Performance Stage 3 Pocket Ported Heads w/ +1mm GSC Valves & GSC S2 Cams W25 Casting