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Engine Internals
CP Forged Pistons
$679.00 $979.00
CP WRX & STI forged pistons feature superb ring seal, higher vacuum, lower blow-by, greater durability and increased horsepower and torque through the power band. Better yet, peak horsepower is...
Wiseco Forged Pistons EJ20/EJ25
$596.25 $619.00
Wiseco forged pistons utilize the absolute latest technology, including 3D computer-aided design and finite element modeling, to ensure the greatest strength and lightest weight for each application. Rings and wrist...
Eagle ESP H Beam Connecting Rods
$391.00 $510.00
Running more boost? Lots of boost? Do it right with some stronger rods from Eagle. With these rods you get the best of both worlds -- weight savings between 30-70...
Manley Connecting Rods
$492.00
Manley has been in business since 1966 producing aftermarket and OEM engine internals, supplying such cars as the Ford GT. Manley's premier connecting rod series is the Turbo Tuff line...
ARP Head Studs EJ Motor
$222.11 $445.00
This ARP head stud set fits all late-model Subaru EJ20 2.0L and EJ25 2.5L powerplants. Finish off that engine rebuild with these race proven head studs. Set of 12 re-useable...
TR Subaru EJ25/EJ20 Timing Belt Guide
Sold Out - $50.00
The TR timing belt guide is an easy and efficient modification for all high power EJ25/EJ20 engines. The TR guide is made of thick billet aluminum that replaces your factory...
JDM STi Alternator Cover with 2.5L Badge
$85.00 $99.00
This Japanese Domestic Market (JDM) part is from the Japan-market Forester STi. It comes with a handsome 2.5L STi badge pre-installed. Fits all 2003-2008 Forester XT, 2008-2014 WRX, and all...
OEM Subaru Exhaust Valve 2006-2014 WRX / 2004+ STI
$73.90
Did you know STI exhaust valves are filled with sodium for enhanced valve cooling? That's high-tech stuff! If you need to replace a valve, or a few, we've got you...
OEM Subaru Intake Valve EJ25
$18.72
If you need to replace a valve, or a few, we've got you covered. These are genuine Subaru intake valves for all Subaru EJ25 models, including 2015+ STI. Does NOT fit 2015+ WRX....
IAG 2.5L Stage 2 Short Block 2006-2014 WRX, 2004+ STI
$3,799.99
The IAG Stage 2 Short Block is designed for modified EJ25 Subarus that need a beefed-up performance short block. The IAG Stage 2 short block builds off the Stage 1's...
OEM Subaru Intake Valve 2015+ WRX
$18.40
If you need to replace a valve, or a few, we've got you covered. These are genuine Subaru intake valves for all Subaru FA20T models, including 2015+ WRX. Does NOT fit...
OEM Subaru Exhaust Valve 2015+ WRX
$42.80
If you need to replace a valve, or a few, we've got you covered. These are genuine Subaru intake valves for all Subaru FA20T models, including 2015+ WRX. Does NOT fit 2015+...
OEM Subaru Exhaust Valve 2013+ BRZ
$42.80
If you need to replace a valve, or a few, we've got you covered. These are genuine Subaru exhaust valves for all Subaru FA20 models, including 2013+ BRZ. Sold individually.
OEM Subaru Intake Valve 2013+ BRZ
$17.28
If you need to replace a valve, or a few, we've got you covered. These are genuine Subaru intake valves for all Subaru FA20 models, including 2013+ BRZ. Sold individually.
Subaru OEM Forged Salt Bath Nitrided Crankshaft EJ25 Turbo
$391.57
This is the OEM salt-bath titanium nitride-coated ("nitrided") crankshaft used in 2011+ STI models. Fits all 2006-2014 Subaru WRX, and 2004+ WRX STI. Also fits most other EJ25 turbo Subaru...
Subaru OEM Cylinder head
$579.96
Factory fresh Subaru cylinder head for your FA20T Motor. Does not come with valves or valve springs. (We recommend the GSC product.) Fits all 2015+ Subaru WRX and 2014+ Forester...
Subaru OEM Cam Gear Bolt Set 2015+ WRX
$10.00
Set of four factory-replacement Subaru cam gear bolts for the FA20 motor. Fits: 2015+ WRX 2014+ Forester XT 2013+ BRZ
Subaru OEM Camshaft 2015+ WRX
$297.33
OEM Subaru cam shafts. Fits all 2015+ WRX
Subaru OEM Cylinder Head 2008-2018 STI
$640.00
Factory fresh Subaru cylinder head for your EJ25 Motor. Does not come with valves or valve springs. Each Cylinder include the cam caps Fits all 2008-2018 Subaru STI .
Subaru OEM Camshaft 2008+ STI
$211.95
OEM Subaru cam shafts, brand new, not refurbished. Sold individually. Fits all 2008+ STI, including 2015+ STI.
Subaru Air Pump / Barometric Sensor 2006-2007 WRX / 2006-2007 STI
$340.72
The Subaru air pump system is one of the most problematic parts of the late-model EJ motor cars. The solenoids often seize up and fail, throwing "check engine" lights and...
Subaru OEM EJ Block O Ring Set
$32.00
The Subaru EJ20 and EJ25 blocks have O-rings between the two block halves. This kit includes all four O-rings used in re-assembling the Subaru EJ case halves. Set of four...
ARP FA20 Head Stud Kit 2015+ WRX & 2013+ BRZ
$253.00 $263.34
This ARP head stud kit is made from 8740 chrome moly steel, 200,000 psi tensile strength. It is precision center-less ground and thread rolled to Mil-S-8879 specs. The kit includes...
Subaru Air Pump/Barometric Sensor 2008-2014 WRX/2008+ STI
$332.00
The Subaru air pump system is one of the most problematic parts of the late-model EJ motor cars. The solenoids often seize up and fail, throwing "check engine" lights and...
Subaru Air Pump/Barometric Sensor 2008-2014 WRX
$330.63
The Subaru air pump system is one of the most problematic parts of the late-model EJ motor cars. The solenoids often seize up and fail, throwing "check engine" lights and...
IAG EJ25/EJ20 Timing Belt Guide
$54.99
The IAG Performance billet timing belt guide is the best method to prevent your EJ engine from skipping a beat. Each guide is machined from a single piece of 6061...
Subaru FA Oil Separator Plate 2015+ WRX
$35.00
This OEM Subaru block plate closes off the FA block where it faces the transmission. This metal version replaces the leaky old plastic part. Comes with seven new bolts and...
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