Add to Cart Compare Add to My Wish List IAG Performance 1150 Closed Deck Long Block Engine w/ IAG 1150 Heads / GSC S2 Camshafts 06-14 WRX 06-13 FXT 07-09 LGT - IAG-ENG-L115D2 $17,499.99 MSRP: IAG Performance
Add to Cart Compare Add to My Wish List IAG Performance 1150 Closed Deck Long Block Engine w/ IAG 1150 Heads / GSC S2 Camshafts 08-18 STI - IAG-ENG-L115W2 $17,499.99 MSRP: IAG Performance
Add to Cart Compare Add to My Wish List IAG Performance 1150 Closed Deck Long Block Engine w/ IAG 1150 Heads / GSC S2 Camshafts 18-19 STI Type RA 19+ STI - IAG-ENG-L115N2 $17,499.99 MSRP: IAG Performance
Add to Cart Compare Add to My Wish List IAG Performance 1150 Closed Deck Long Block Engine w/ IAG 1150 Heads / GSC S3 Camshafts 04-07 STI 04-05 FXT 05-06 LGT GSC S3 Camshafts. (REQUIRES Standalone Engine Management May Not Be Compatible w/ AVCS) - IAG-ENG-L115V3 $17,499.99 MSRP: IAG Performance
Add to Cart Compare Add to My Wish List IAG Performance 1150 Closed Deck Long Block Engine w/ IAG 1150 Heads / GSC S3 Camshafts 06-14 WRX 06-13 FXT 07-09 LGT (REQUIRES Standalone Engine Management May Not Be Compatible w/ AVCS) - IAG-ENG-L115D3 $17,499.99 MSRP: IAG Performance
Add to Cart Compare Add to My Wish List IAG Performance 1150 Closed Deck Long Block Engine w/ IAG 1150 Heads / GSC S3 Camshafts 08-18 STI (REQUIRES Standalone Engine Management May Not Be Compatible w/ AVCS) - IAG-ENG-L115W3 $17,499.99 MSRP: IAG Performance
Add to Cart Compare Add to My Wish List IAG Performance 1150 Closed Deck Long Block Engine w/ IAG 1150 Heads / GSC S3 Camshafts 18-19 STI Type RA 2019+ STI (REQUIRES Standalone Engine Management May Not Be Compatible w/ AVCS) - IAG-ENG-L115N3 $17,499.99 MSRP: IAG Performance
Add to Cart Compare Add to My Wish List IAG Performance 1150 Closed Deck Long Block Engine w/ IAG 1150 Heads / GSC S3 Camshafts.02-05 USDM WRX 2.5L (HYBRID) (REQUIRES Standalone Engine Management May Not Be Compatible w/ AVCS) - IAG-ENG-L115SC3 $17,699.99 MSRP: IAG Performance
Add to Cart Compare Add to My Wish List IAG Performance 1150 CNC Ported Drag D25 Cylinder Heads Package (No Cams & Lifters) 06-14 WRX 06-13 FXT 07-09 LGT - IAG-ENG-H115DE $5,799.99 MSRP: IAG Performance
Add to Cart Compare Add to My Wish List IAG Performance 1150 CNC Ported Drag D25 Cylinder Heads Package w/ GSC S2 Cams & Lifters 06-14 WRX 06-13 FXT 07-09 LGT - IAG-ENG-H115DL2 $7,499.99 MSRP: IAG Performance
Add to Cart Compare Add to My Wish List IAG Performance 1150 CNC Ported Drag D25 Cylinder Heads Package w/ GSC S3 Cams & Lifters 06-14 WRX 06-13 FXT 07-09 LGT (REQUIRES Standalone Engine Management May Not Be Compatible w/ AVCS) - IAG-ENG-H115DL3 $7,499.99 MSRP: IAG Performance
Add to Cart Compare Add to My Wish List IAG Performance 1150 CNC Ported Drag N25 Cylinder Heads Package (No Cams & Lifters) 18-19 STI Type RA 2019-21 STI - IAG-ENG-H115NE $5,799.99 MSRP: IAG Performance
Add to Cart Compare Add to My Wish List IAG Performance 1150 CNC Ported Drag N25 Cylinder Heads Package w/ GSC S2 Cams & Lifters 18-19 STI Type RA 19-21 STI - IAG-ENG-H115NL2 $7,499.99 MSRP: IAG Performance
Add to Cart Compare Add to My Wish List IAG Performance 1150 CNC Ported Drag N25 Cylinder Heads Package w/ GSC S3 Cams & Lifters 18-19 STI Type RA 19-21 STI (REQUIRES Standalone Engine Management May Not Be Compatible w/ AVCS) - IAG-ENG-H115NL3 $7,499.99 MSRP: IAG Performance
Add to Cart Compare Add to My Wish List IAG Performance 1150 CNC Ported Drag S20 Cylinder Heads Package (No Cams / Lifters) 02-05 WRX - IAG-ENG-H115SE $5,799.99 MSRP: IAG Performance
Add to Cart Compare Add to My Wish List IAG Performance 1150 CNC Ported Drag S20 Cylinder Heads Package w/ Combustion Mod & GSC S2 Cams & Lifters 02-05 WRXv - IAG-ENG-H115SCL2 $7,699.99 MSRP: IAG Performance
Add to Cart Compare Add to My Wish List IAG Performance 1150 CNC Ported Drag S20 Cylinder Heads Package w/ Combustion Mod & GSC S3 Cams & Lifters 02-05 WRX (REQUIRES Standalone Engine Management May Not Be Compatible w/ AVCS) - IAG-ENG-H115SCL3 $7,699.99 MSRP: IAG Performance
Add to Cart Compare Add to My Wish List IAG Performance 1150 CNC Ported Drag S20 Cylinder Heads Package w/ Combustion Mod (No Cams / Lifters) 02-05 WRX - IAG-ENG-H115SCE $5,999.99 MSRP: IAG Performance
Add to Cart Compare Add to My Wish List IAG Performance 1150 CNC Ported Drag S20 Cylinder Heads Package w/ GSC S2 Cams & Lifters 02-05 WRX - IAG-ENG-H115SL2 $7,499.99 MSRP: IAG Performance
Add to Cart Compare Add to My Wish List IAG Performance 1150 CNC Ported Drag S20 Cylinder Heads Package w/ GSC S3 Cams & Lifters 02-05 WRX (REQUIRES Standalone Engine Management May Not Be Compatible w/ AVCS) - IAG-ENG-H115SL3 $7,499.99 MSRP: IAG Performance
Add to Cart Compare Add to My Wish List IAG Performance 1150 CNC Ported Drag V25 Cylinder Heads Package (No Cams & Lifters) 04-07 STI 04-05 FXT 05-09 LGT - IAG-ENG-H115VE $5,799.99 MSRP: IAG Performance
Add to Cart Compare Add to My Wish List IAG Performance 1150 CNC Ported Drag V25 Cylinder Heads Package w/ GSC S2 Cams & Lifters 04-07 STI 04-05 FXT 05-09 LGT - IAG-ENG-H115VL2 $7,499.99 MSRP: IAG Performance
Add to Cart Compare Add to My Wish List IAG Performance 1150 CNC Ported Drag V25 Cylinder Heads Package w/ GSC S3 Cams & Lifters 04-07 STI 04-05 FXT 05-09 LGT (REQUIRES Standalone Engine Management May Not Be Compatible w/ AVCS) - IAG-ENG-H115VL3 $7,499.99 MSRP: IAG Performance
Add to Cart Compare Add to My Wish List IAG Performance 1150 CNC Ported Drag W25 Cylinder Heads Package (No Cams & Lifters) 08-18 STI - IAG-ENG-H115WE $5,799.99 MSRP: IAG Performance