Cylinder Heads

Price Price
Brand Brand

IAG Stage 5 Cylinder Heads (No Cams/Rockers/Lash Caps), 2015-2021 WRX
Available For Order!

IAG Stage 5 Cylinder Heads (No Cams/Rockers/Lash Caps), 2015-2021 WRX


$5,799.99 $5,219.99

IAG Stage 4 Cylinder Heads w/ +1mm Valves & GSC S3 Cams (D25 Casting), '06-'14 WRX
Available For Order!

IAG Stage 4 Cylinder Heads w/ +1mm Valves & GSC S3 Cams (D25 Casting), '06-'14 WRX


$6,299.99 $5,669.99

IAG Stage 3 Cylinder Heads w/ +1mm GSC Valves (No Cams/Buckets, D25 Casting), '06-'14 WRX
Available For Order!

IAG Stage 3 Cylinder Heads w/ +1mm GSC Valves (No Cams/Buckets, D25 Casting), '06-'14 WRX


$3,629.99 $3,266.99

IAG Stage 3 Cylinder Heads w/ +1mm GSC Valves (No Cams/Buckets, V25 Casting), '07 STi
Available For Order!

IAG Stage 3 Cylinder Heads w/ +1mm GSC Valves (No Cams/Buckets, V25 Casting), '07 STi


$3,629.99 $3,266.99

IAG Stage 3 Cylinder Heads (No Cams/Buckets, W25 Castings), '08-'18 STi
Available For Order!

IAG Stage 3 Cylinder Heads (No Cams/Buckets, W25 Castings), '08-'18 STi


$3,629.99 $3,266.99

IAG Stage 3 Cylinder Heads w/ +1mm GSC Valves (D25 Casting), '06-'14 WRX
Available For Order!

IAG Stage 3 Cylinder Heads w/ +1mm GSC Valves (D25 Casting), '06-'14 WRX


$5,499.99 $4,949.99

IAG Stage 3 Cylinder Heads w/ +1mm GSC Valves (V25 Casting), 2007 STi
Available For Order!

IAG Stage 3 Cylinder Heads w/ +1mm GSC Valves (V25 Casting), 2007 STi


$5,499.99 $4,949.99

IAG Stage 3 Cylinder Heads w/ +1mm GSC Valves & S2 Cams (W25 Castings), '08-'18 STi
Available For Order!

IAG Stage 3 Cylinder Heads w/ +1mm GSC Valves & S2 Cams (W25 Castings), '08-'18 STi


$5,499.99 $4,949.99

IAG Stage 4 Cylinder Heads w/ +1mm Valves & GSC S3 Cams (S20 Casting), '02-'05 WRX
Available For Order!

IAG Stage 4 Cylinder Heads w/ +1mm Valves & GSC S3 Cams (S20 Casting), '02-'05 WRX


$5,999.99 $5,399.99

IAG Stage 4 Cylinder Heads w/ +1mm Valves & GSC S3 Cams (V25 Casting), '07 STi
Available For Order!

IAG Stage 4 Cylinder Heads w/ +1mm Valves & GSC S3 Cams (V25 Casting), '07 STi


$6,299.99 $5,669.99

IAG Stage 4 Cylinder Heads w/ +1mm Valves & GSC S3 Cams (W25 Casting), '08-'18 STi
Available For Order!

IAG Stage 4 Cylinder Heads w/ +1mm Valves & GSC S3 Cams (W25 Casting), '08-'18 STi


$6,299.99 $5,669.99

IAG 1000 CNC Ported Drag Cylinder Heads (No Cams/Towers/Lifters/Rockers), '15-'21 WRX
Available For Order!

IAG 1000 CNC Ported Drag Cylinder Heads (No Cams/Towers/Lifters/Rockers), '15-'21 WRX


$4,999.99 $4,499.99

IAG 1150 CNC Ported Drag D25 Cylinder Heads (No Cams & Lifters), '06-'14 WRX
Available For Order!

IAG 1150 CNC Ported Drag D25 Cylinder Heads (No Cams & Lifters), '06-'14 WRX


$5,799.99 $5,219.99

IAG 1150 CNC Ported Drag D25 Cylinder Heads w/ GSC S2 Cams & Lifters, '06-'14 WRX
Available For Order!

IAG 1150 CNC Ported Drag D25 Cylinder Heads w/ GSC S2 Cams & Lifters, '06-'14 WRX


$7,499.99 $6,749.99

IAG 1150 CNC Ported Drag D25 Cylinder Heads w/ GSC S3 Cams & Lifters, '06-'14 WRX
Available For Order!

IAG 1150 CNC Ported Drag D25 Cylinder Heads w/ GSC S3 Cams & Lifters, '06-'14 WRX


$7,499.99 $6,749.99

IAG 1150 CNC Ported Drag S20 Cylinder Heads w/ Combustion Mod (No Cams / Lifters), '02-'05 WRX
Available For Order!

IAG 1150 CNC Ported Drag S20 Cylinder Heads w/ Combustion Mod (No Cams / Lifters), '02-'05 WRX


$5,999.99 $5,399.99

IAG 1150 CNC Ported Drag S20 Cylinder Heads (No Cams / Lifters), '02-'05 WRX
Available For Order!

IAG 1150 CNC Ported Drag S20 Cylinder Heads (No Cams / Lifters), '02-'05 WRX


$5,799.99 $5,219.99

IAG 1150 CNC Ported Drag S20 Cylinder Heads w/ GSC S2 Cams & Lifters, '02-'05 WRX
Available For Order!

IAG 1150 CNC Ported Drag S20 Cylinder Heads w/ GSC S2 Cams & Lifters, '02-'05 WRX


$7,499.99 $6,749.99

IAG 1150 CNC Ported Drag S20 Cylinder Heads w/ GSC S3 Cams & Lifters, '02-'05 WRX
Available For Order!

IAG 1150 CNC Ported Drag S20 Cylinder Heads w/ GSC S3 Cams & Lifters, '02-'05 WRX


$7,499.99 $6,749.99

IAG 1150 CNC Ported Drag V25 Cylinder Heads (No Cams & Lifters), '04-'07 STi
Available For Order!

IAG 1150 CNC Ported Drag V25 Cylinder Heads (No Cams & Lifters), '04-'07 STi


$5,799.99 $5,219.99

IAG 1150 CNC Ported Drag V25 Cylinder Heads w/ GSC S2 Cams & Lifters, '04-'07 STi
Available For Order!

IAG 1150 CNC Ported Drag V25 Cylinder Heads w/ GSC S2 Cams & Lifters, '04-'07 STi


$7,499.99 $6,749.99

IAG 1150 CNC Ported Drag V25 Cylinder Heads w/ GSC S3 Cams & Lifters, '04-'07 STi
Available For Order!

IAG 1150 CNC Ported Drag V25 Cylinder Heads w/ GSC S3 Cams & Lifters, '04-'07 STi


$7,499.99 $6,749.99

IAG 1150 CNC Ported Drag W25 Cylinder Heads (No Cams & Lifters), '08-'18 STi
Available For Order!

IAG 1150 CNC Ported Drag W25 Cylinder Heads (No Cams & Lifters), '08-'18 STi


$5,799.99 $5,219.99

IAG 1150 CNC Ported Drag W25 Cylinder Heads w/ GSC S2 Cam & Lifters, '08-'18 STi
Available For Order!

IAG 1150 CNC Ported Drag W25 Cylinder Heads w/ GSC S2 Cam & Lifters, '08-'18 STi


$7,499.99 $6,749.99

IAG 1150 CNC Ported Drag W25 Cylinder Heads w/ GSC S3 Cam & Lifters, '08-'18 STi
Available For Order!

IAG 1150 CNC Ported Drag W25 Cylinder Heads w/ GSC S3 Cam & Lifters, '08-'18 STi


$7,499.99 $6,749.99

IAG 550 Street D25 Cylinder Heads (No Cams & Lifters), 2006-2014 WRX
Available For Order!

IAG 550 Street D25 Cylinder Heads (No Cams & Lifters), 2006-2014 WRX


$2,999.99 $2,699.99

IAG 550 Street D25 Cylinder Heads w/ GSC S1 Cams & Lifters, '06-'14 WRX
Available For Order!

IAG 550 Street D25 Cylinder Heads w/ GSC S1 Cams & Lifters, '06-'14 WRX


$4,699.99 $4,229.99

IAG 550 Street S20 Cylinder Heads w/ Combustion Mod (No Cams / Lifters), '02-'05 WRX
Available For Order!

IAG 550 Street S20 Cylinder Heads w/ Combustion Mod (No Cams / Lifters), '02-'05 WRX


$3,199.99 $2,879.99

IAG 550 Street S20 Cylinder Heads w/ Combustion Mod & GSC S1 Cams & Lifters, '02-'05 WRX
Available For Order!

IAG 550 Street S20 Cylinder Heads w/ Combustion Mod & GSC S1 Cams & Lifters, '02-'05 WRX


$4,899.99 $4,409.99

IAG 550 Street S20 Cylinder Heads (No Cams / Lifters), 2002-2005 WRX
Available For Order!

IAG 550 Street S20 Cylinder Heads (No Cams / Lifters), 2002-2005 WRX


$2,999.99 $2,699.99

IAG 550 Street S20 Cylinder Heads w/ GSC S1 Cams & Lifters, '02-'05 WRX
Available For Order!

IAG 550 Street S20 Cylinder Heads w/ GSC S1 Cams & Lifters, '02-'05 WRX


$4,699.99 $4,229.99

IAG 550 Street V25 Cylinder Heads (No Cams & Lifters), 2004-2007 STi
Available For Order!

IAG 550 Street V25 Cylinder Heads (No Cams & Lifters), 2004-2007 STi


$2,999.99 $2,699.99

IAG 550 Street V25 Cylinder Heads w/ GSC S1 Cams & Lifters, '04-'07 STi
Available For Order!

IAG 550 Street V25 Cylinder Heads w/ GSC S1 Cams & Lifters, '04-'07 STi


$4,699.99 $4,229.99

IAG 550 Street W25 Cylinder Heads (No Cams & Lifters), 2008-2018 STi
Available For Order!

IAG 550 Street W25 Cylinder Heads (No Cams & Lifters), 2008-2018 STi


$2,999.99 $2,699.99

IAG 550 Street W25 Cylinder Heads w/ GSC S1 Cam & Lifters, '08-'18 STi
Available For Order!

IAG 550 Street W25 Cylinder Heads w/ GSC S1 Cam & Lifters, '08-'18 STi


$4,699.99 $4,229.99

IAG 600 Street Cylinder Heads (No Cams/Towers/Lifters/Rockers), '15-'21 WRX
Available For Order!

IAG 600 Street Cylinder Heads (No Cams/Towers/Lifters/Rockers), '15-'21 WRX


$2,999.99 $2,699.99

IAG 600 Street Cylinder Heads w/ Kelford EZ Cams & Cam Towers/Lifters/Rockers, '15-'21 WRX
Available For Order!

IAG 600 Street Cylinder Heads w/ Kelford EZ Cams & Cam Towers/Lifters/Rockers, '15-'21 WRX


$5,699.99 $5,129.99

IAG 750 CNC Pocket Ported D25 Competition Cylinder Heads (No Cams & Lifters), '06-'14 WRX
Available For Order!

IAG 750 CNC Pocket Ported D25 Competition Cylinder Heads (No Cams & Lifters), '06-'14 WRX


$3,799.99 $3,419.99

IAG 750 CNC Pocket Ported D25 Competition Cylinder Heads w/ GSC S1 Cams & Lifters, '06-'14 WRX
Available For Order!

IAG 750 CNC Pocket Ported D25 Competition Cylinder Heads w/ GSC S1 Cams & Lifters, '06-'14 WRX


$5,699.99 $5,129.99

IAG 750 CNC Pocket Ported S20 Competition Cylinder Heads (No Cams / Lifters), '02-'05 WRX
Available For Order!

IAG 750 CNC Pocket Ported S20 Competition Cylinder Heads (No Cams / Lifters), '02-'05 WRX


$3,799.99 $3,419.99

IAG 750 CNC Pocket Ported S20 Competition Cylinder Heads w/ GSC S1 Cams & Lifters, '02-'05 WRX
Available For Order!

IAG 750 CNC Pocket Ported S20 Competition Cylinder Heads w/ GSC S1 Cams & Lifters, '02-'05 WRX


$5,699.99 $5,129.99

IAG 750 CNC Pocket Ported V25 Competition Cylinder Heads (No Cams & Lifters), '04-'07 STi
Available For Order!

IAG 750 CNC Pocket Ported V25 Competition Cylinder Heads (No Cams & Lifters), '04-'07 STi


$3,799.99 $3,419.99

IAG 750 CNC Pocket Ported V25 Competition Cylinder Heads w/ GSC S1 Cams & Lifters, '04-'07 STi
Available For Order!

IAG 750 CNC Pocket Ported V25 Competition Cylinder Heads w/ GSC S1 Cams & Lifters, '04-'07 STi


$5,699.99 $5,129.99

IAG 750 CNC Pocket Ported W25 Competition Cylinder Heads (No Cams & Lifters), '08-'18 STi
Available For Order!

IAG 750 CNC Pocket Ported W25 Competition Cylinder Heads (No Cams & Lifters), '08-'18 STi


$3,799.99 $3,419.99

IAG 750 CNC Pocket Ported W25 Competition Cylinder Heads w/ GSC S1 Cam & Lifters, '08-'18 STi
Available For Order!

IAG 750 CNC Pocket Ported W25 Competition Cylinder Heads w/ GSC S1 Cam & Lifters, '08-'18 STi


$5,699.99 $5,129.99