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Up to $64.45 OFFVendor:Manley PerformanceManley 98+ Subaru WRX (EJ205) 79mm +4mm Stroker 92mm STD Bore 8.5:1 Dish Piston Set with Rings - 620000C-4
Only 2 leftRegular price $741.18Sale price $741.18 Regular priceUnit price per$805.63 -
Up to $64.45 OFFVendor:Manley PerformanceManley 04+ Subaru WRX STI (EJ257) STD Stroke 99.75mm +.25mm Bore 9.8:1 Dish Piston Set with Rings - 612102C-4
Only 2 leftRegular price $741.18Sale price $741.18 Regular priceUnit price per$805.63 -
Up to $52.79 OFFVendor:Manley PerformanceManley 00-03 Subaru WRX (EJ20) / 04 STI Exhaust 32mm Stainless Race Master Valves - 11155-8
Only 8 leftRegular price $211.14Sale price $211.14 Regular priceUnit price per$263.93 -
Vendor:ACLACL Subaru EJ20/EJ22/EJ25 (For Thrust in #5 Position) 0.50mm Oversized High Performance Main Bearing - 5M8309H-.50
Only 3 leftRegular price $172.32Sale price $172.32 Regular priceUnit price per -
Vendor:ACLACL Subaru EJ20/EJ22/EJ25 (For Thrust in #5 Position) 0.25mm Oversized High Performance Main Bearing - 5M8309H-.25
Only 16 leftRegular price $172.32Sale price $172.32 Regular priceUnit price per -
Vendor:JE PistonsJE 99.5mm 8.8:1 Billet FSR Piston Set For Subaru EJ257 (79mm Stroke)
Regular price $1,799.99Sale price $1,799.99 Regular priceUnit price per -
Vendor:CosworthCosworth 1.45mm Right Hand Head Gasket For 2015-21 Subaru WRX, 2013-17 BRZ / FR-S
Only 1 leftRegular price $94.99Sale price $94.99 Regular priceUnit price per -
Vendor:SubaruSubaru Left Hand Dual AVCS Cylinder Head for 2008-11 Subaru STI
Regular price $896.08Sale price $896.08 Regular priceUnit price per -
Vendor:JE PistonsJE 99.5mm 9.5:1 FSR Piston Set For Subaru WRX Hybrids with EJ25 Block EJ20 Heads
Regular price $899.99Sale price $899.99 Regular priceUnit price per -
Vendor:JE PistonsJE 100mm 8.5:1 Stroker Time Attack FSR Piston Set For Subaru EJ257
Regular price $899.99Sale price $899.99 Regular priceUnit price per -
Vendor:Kelford CamsKelford Cams 268 / 264 Street & Race Cam Shafts For 2002-05 Subaru WRX Non AVCS EJ20 Engines
Regular price $949.05Sale price $949.05 Regular priceUnit price per -
Vendor:SubaruSubaru Right Hand Dual AVCS Cylinder Head for 2008-11 Subaru STI
Regular price $977.43Sale price $977.43 Regular priceUnit price per -
1150 BHPVendor:IAG PerformanceIAG 1150 High Compression 2.5L Subaru Closed Deck Short Block For WRX, STI, LGT, FXT - 1150 BHP
Only 3 leftRegular price $9,499.99Sale price $9,499.99 Regular priceUnit price per -
Vendor:King Engine BearingsKing Engine Bearings Subaru EJ20/EJ22/EJ25 (Incl. Turbo) Main Bearing Set - Size +0.25mm - MB5382SI0.25
Only 11 leftRegular price $64.30Sale price $64.30 Regular priceUnit price per -
Vendor:GatesGates Subaru EJ20 2.0L EJ25 2.5L Pulley For Tensioner - T42146
Only 4 leftRegular price $78.11Sale price $78.11 Regular priceUnit price per -
Vendor:ACLACL Subaru FA20 Standard Size Main Bearing Set w/ +.002in OD - 5M8312HO/S2-STD
Only 4 leftRegular price $337.90Sale price $337.90 Regular priceUnit price per -
Vendor:SubaruSubaru A/C Condenser Mount Bolt and Washer for 04-21 WRX, 07-21 STI
Regular price $0.70Sale price $0.70 Regular priceUnit price per -
Vendor:SubaruSubaru Accessory Drive Cover / A-Pillar Trim Washer for 02-21 WRX, 04-21 STI
Regular price $0.14Sale price $0.14 Regular priceUnit price per -
Vendor:SubaruSubaru A/C Condenser Fan Blade Flange Nut for 02-07 WRX, 04-07 STI, 13-20 BRZ
Regular price $0.46Sale price $0.46 Regular priceUnit price per -
Vendor:SubaruSubaru A/C Compressor / Belt Tensioner Bolt for 10-12 LGT, 13 BRZ
Regular price $1.24Sale price $1.24 Regular priceUnit price per -
Vendor:SubaruSubaru Timing Cover Bolt for 2013 BRZ
Regular price $1.75Sale price $1.75 Regular priceUnit price per -
Vendor:SubaruSubaru A/C Compressor / Belt Tensioner Bolt for 03-07 Forester 2.5L, 04-06 Baja
Regular price $1.72Sale price $1.72 Regular priceUnit price per -
Vendor:SubaruSubaru A/C Compressor Belt Tensioner Bolt for 02-24 WRX, 04-21 STI, 13-25 BRZ
Regular price $0.98Sale price $0.98 Regular priceUnit price per -
Vendor:SubaruSubaru A/C Compressor/Auto Trans Valve Body Bolt for 02-21 WRX, 04-21 STI
Regular price $0.96Sale price $0.96 Regular priceUnit price per -
Vendor:Subaru
Subaru Intake Manifold Gasket for 2022-24 WRX
Regular price $22.72Sale price $22.72 Regular priceUnit price per -
Vendor:Subaru
Subaru Engine Crankshaft Timing Sprocket for 2015-24 WRX, 13-25 BRZ
Regular price $57.25Sale price $57.25 Regular priceUnit price per -
Vendor:Subaru
Subaru FA24 Cylinder Block Front Baffle Plate for 2022-25 WRX, 22-25 BRZ
Regular price $6.95Sale price $6.95 Regular priceUnit price per -
Vendor:Subaru
Subaru Cylinder Block Plug for 2015-24 WRX, 13-20 BRZ
Regular price $7.38Sale price $7.38 Regular priceUnit price per -
Vendor:Subaru
Subaru Alternator Bracket Bolt (M6 X 20 X 18) for 2015-24 WRX, 13-25 BRZ
Regular price $1.90Sale price $1.90 Regular priceUnit price per -
Vendor:Subaru
Subaru Cover Plate Bolt (M6 X 12 X 12) for 2015-24 WRX, 13-25 BRZ
Regular price $1.26Sale price $1.26 Regular priceUnit price per -
Vendor:Subaru
Subaru Oil Separator Cover for 2022-24 WRX
Regular price $25.97Sale price $25.97 Regular priceUnit price per -
Up to $6.79 OFFVendor:Go Fast BitsGFB 13+ Subaru BRZ / 13+ Scion FR-S Lightweight Alternator Pulley - 2221
Only 5 leftRegular price $61.11Sale price $61.11 Regular priceUnit price per$67.90 -
Up to $38.09 OFFVendor:Go Fast BitsGFB 13 Subaru BRZ / 13 Scion FR-S 3 Pc L/W Pulley Kit (Inc Crank/Alternator/Water Pump Pulleys) - 2016
Only 2 leftRegular price $342.81Sale price $342.81 Regular priceUnit price per$380.90 -
Vendor:IAG PerformanceIAG / RCM Alloy Cam Sprocket (Right Hand Exhaust) for V1-4 1992-98 WRX, 1994-98 STI
Only 7 leftRegular price $176.99Sale price $176.99 Regular priceUnit price per -
Vendor:Brian CrowerBrian Crower Connecting Rods - Subaru EJ205-EJ257 - 5.141 - BC625+ w/ARP Custom Age 625+ Fasteners - BC6608
Only 5 leftRegular price $980.70Sale price $980.70 Regular priceUnit price per -
Vendor:Brian CrowerBrian Crower Subaru EJ205-WRX/EJ257-STi Titanium Retainers - Set of 16 - BC2300-16
Only 4 leftRegular price $204.00Sale price $204.00 Regular priceUnit price per
Engine Builds
IAG Performance carries oem replacement and high-performance engine building parts for your 2002-2023 Subaru WRX, STI, Legacy GT, Forester XT, and BRZ. We have all the parts you need for your Subaru such as Short blocks, Longs Blocks, Pistons, Cranks, Rods, Cases, Cylinder Heads, Camshafts, Sprockets, Pulleys, Gaskets, Timing Belts, Hardware, and more.
Here are just a few of the brands we carry-
ACL, ARP, ATI, Brian Crower, CP Pistons, Carrillo, Clevite, Fluidampr, GSC, Gates, HKS, IAG Performance, JE Pistons, JE Pro Seal, Kelford Cams, King Engine Bearings, Manley, Perrin, Radium Engineering, Subaru, Tomei, and more.