04-08 Forester XT

Radium Engineering 08-14 Subaru WRX/STI and 15+ STI Dual Catch Can Kit

Click here to download installation instructions 20-0208-02 Mounting Compatibility 02-07 Impreza WRX02-07 Impreza WRX STi04-08 Forester...

$439.95 $417.95
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Wiseco Subaru EJ257 WRX/STI 4v Dish -19cc Piston Shelf Stock Kit

Wiseco sport compact piston and ring kits give you stronger pistons and tighter tolerances than...

$576.00
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Wiseco Subaru EJ20/EJ25 Turbo 130.5mm - BoostLine Connecting Rod Kit

Introducing BoostLine Connecting Rods by Wiseco Performance Products! Our engineering team created this new, patent-pending...

$640.00
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Subaru OEM STi Forged Nitrate Treated Crankshaft

This crankshaft from Subaru is their latest and greatest factory EJ crankshaft. The crank is...

$381.56
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Subaru OEM 2.5L Block Halves - Subaru STI

For those of you who sent a piston through the hood of your vehicle, don't...

$1,104.23
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Subaru OEM 11mm Oil Pump (Subaru EJ20 / EJ25)

This is the same oil pump that came stock on the 2008 STI. This will...

$194.95
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Radium Engineering Air Oil Separator (AOS-R) Kit, Subaru 02-14/2015+ STi/Saab 9-2X

High-powered modified Subaru engines tend to generate excessive blow-by oil and gasses. In these cases,...

$449.95
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Manley Subaru WRX/STi Valve Spring and Retainer Kit (w/o Valve Locks) (16 each)

Manley valve springs are wound from super clean alloy. Each design minimizes stress to ensure...

$236.90
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Manley Subaru WRX EJ205/STi EJ257 H Tuff Connecting Rod Set

Manley steel H-beam connecting rods are made from forged 4340 steel alloy. They're packed full...

$489.00
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Manley Subaru WRX / STI (EJ205/STi EJ257) Turbo Tuff Pro Series I Beam Connecting Rod Set

Manley Pro Series I-Beam Turbo Tuff connecting rods are assembled from high-quality 4340 forged steel....

$838.80
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Manley Subaru EJ20/EJ25 4340 Billet Turbo Tuff Series Crankshaft

"Race Series" cranks are now available for Mitsubishi 4G63/4G64; along with our fully machined "Turbo...

$1,625.00
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Manley Performance Race Master Stainless Steel Intake Valves Subaru WRX 2002-2005 / STi 2004+

Manley valves have set the standard for excellence in quality, material and design in the...

$182.40
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Manley Performance Race Master Stainless Steel Exhaust Valves Subaru WRX 2002-2005 / STi 2004+

Manley valves have set the standard for excellence in quality, material and design in the...

$182.40
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Manley 04+ WRX STi (EJ257) Size (STD) Stroke (79mm) Bore (99.50mm Grade B) SINGLE Piston w/ Rings

Manley pistons are machined of high strength 2618 material. Each design is lightweight yet robust...

$157.00
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King Subaru EJ20/EJ22/EJ25 (For Thrust in #5 Position) (Size STD) Performance Main Bearing Set

King conducted extensive research into the unique oiling circumstances of the Subaru EJ series engines....

$98.00
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K1 Technologies Subaru EJ20/25 Turbo 130.5mm H Beam Connecting Rods w/ARP2000 Bolts - Set of 4

K1 Technologies H-beam billet connecting rods offer energy transfer technology at its best! Manufactured from...

$397.23
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HKS Equal Length Header / Exhaust Manifold - 04-14 Impreza WRX STI & 15+ WRX STI

The HKS Equal Length Header (Exhaust Manifold) for the Subaru EJ25 motor works on the...

$665.00 $565.25
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Grimmspeed Up Pipe w/ Black Ceramic Coating All Turbo Subarus

Adding an aftermarket Up Pipe is one of the first things you should do to...

$265.00
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Grimmspeed Up pipe to Turbo Gasket

An amazing 7 LAYERS! GrimmSpeed™ OEM Style Gasket, OEM quality without the high OEM price. At GrimmSpeed™...

$13.00
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Grimmspeed Up Pipe All Turbo Subarus

Adding an aftermarket Up Pipe is one of the first things you should do to...

$220.00
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Grimmspeed Up Pipe 44mm EWG V-Band w/ Black Ceramic Coating (IWG bracket recommended)

An External Wastegate (EWG) allows exhaust gases to be diverted prior to entering the turbo;...

$390.00
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Grimmspeed Up Pipe 44mm EWG V-Band (IWG bracket recommended)

An External Wastegate (EWG) allows exhaust gases to be diverted prior to entering the turbo;...

$350.00
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Grimmspeed Up Pipe 38mm EWG V-Band w/ Black Ceramic Coating (IWG bracket recommended)

An External Wastegate (EWG) allows exhaust gases to be diverted prior to entering the turbo;...

$380.00
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Grimmspeed Up Pipe 38mm EWG V-Band (IWG bracket recommended)

An External Wastegate (EWG) allows exhaust gases to be diverted prior to entering the turbo;...

$340.00
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Grimmspeed Up Pipe 3-Bolt Inlet w/ Black Ceramic Coating All Turbo Subarus

Adding an aftermarket Up Pipe is one of the first things you should do to...

$275.00
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Grimmspeed Up Pipe 3-Bolt Inlet All Turbo Subarus

Adding an aftermarket Up Pipe is one of the first things you should do to...

$235.00
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Grimmspeed Up Pipe 3-Bolt Inlet 44mm EWG V-Band w/ Black Ceramic Coating (IWG bracket recommended)

An External Wastegate (EWG) allows exhaust gases to be diverted prior to entering the turbo....

$400.00
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Grimmspeed Up Pipe 3-Bolt Inlet 44mm EWG V-Band (IWG bracket recommended)

An External Wastegate (EWG) allows exhaust gases to be diverted prior to entering the turbo....

$360.00
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Grimmspeed Up Pipe 3-Bolt Inlet 38mm EWG V-Band w/ Black Ceramic Coating (IWG bracket recommended)

An External Wastegate (EWG) allows exhaust gases to be diverted prior to entering the turbo....

$390.00
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Grimmspeed Up Pipe 3-Bolt Inlet 38mm EWG V-Band (IWG bracket recommended)

An External Wastegate (EWG) allows exhaust gases to be diverted prior to entering the turbo....

$350.00
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Grimmspeed Turbo Wastegate Bracket - VF Series Turbos

The internal wastegate(IWG) bracket is used in place of the stock wastegate actuator when moving...

$35.00
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Grimmspeed Turbo to Downpipe Gasket - EJ

7 STAINLESS STEEL LAYERS GrimmSpeed OEM Style Gasket, OEM quality without the high OEM price. At...

$17.00
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Grimmspeed Turbo Heat Shield w/ Black Ceramic Coating

We knew when it came time to design this product we didn't want to just...

$100.00
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Grimmspeed Turbo Heat Shield

We knew when it came time to design this product we didn't want to just...

$79.00
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Grimmspeed Top Mount Intercooler Aluminum Y-Pipe Kit RED - Subaru 02-04WRX/04-17STI/FXT

A high-quality y-pipe solution for all. Just bought an aftermarket or STI TMIC that requires...

$155.00
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Grimmspeed Top Mount Intercooler Aluminum Y-Pipe Kit BLACK - Subaru 02-04WRX/04-17STI/FXT

A high-quality y-pipe solution for all. Just bought an aftermarket or STI TMIC that requires...

$155.00
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Grimmspeed TGV > Engine Gasket(Pair) 02+ WRX/STI/FXT/LGT

Not much to say here. Just a set of GrimmSpeed™ TGV to engine gaskets. get...

$11.00
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Grimmspeed Phenolic Thermal Spacer 8mm 02-14 WRX, 04+STI, LGT/FXT

Do you know what your intake manifold sits on?...a superheated boxer engine. If you don't...

$60.00
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Grimmspeed Phenolic Thermal Spacer 3mm 02-14 WRX, 04+STI, LGT/FXT

Do you know what your intake manifold sits on?...a superheated boxer engine. If you don't...

$50.00
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Grimmspeed Oil Cap "Cool Touch" Delrin Black - Subaru All EJ Engines

GrimmSpeed® brings you another innovative product, a first of its kind "Cool Touch" Delrin® Oil...

$58.00
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Grimmspeed Lightweight Crank Pulley Red - Subaru All EJ Engines

n our opinion, the OEM Subaru crank pulley has been a cause for concern ever...

$125.00
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Grimmspeed Lightweight Crank Pulley Blue - Subaru All EJ Engines

n our opinion, the OEM Subaru crank pulley has been a cause for concern ever...

$125.00
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Grimmspeed Lightweight Crank Pulley Black - Subaru All EJ Engines

n our opinion, the OEM Subaru crank pulley has been a cause for concern ever...

$125.00
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Grimmspeed Intake Manifold to TGV Gasket(Pair) 02+ WRX/STI/FXT/LGT

GrimmSpeed™ does it again! Introducting our enlarged bore Intake Manifold to TGV gaskets. Why do...

$11.00
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Grimmspeed Hood Struts "High Lift" - Subaru 03-08 Forester XT

Tired of that ugly OEM hood prop blocking your view of that beautiful boxer engine?...

$132.00
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