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Engine Miscellaneous
Kartboy Battery Hold Down
The Kartboy battery hold down wins our prize for "lightest battery hold down." The clean lines contain some serious CNC pocketing that removes a bunch of the inner, non-structural aluminum....
Kartboy Pitch Mount
It's made of billet aluminum. The polyurethane bushings are bright yellow. The outer coating is hard black super-indestructanium. (Okay, we made up the last part. But it's tough looking, that's...
STi 'Dog Bone' Pitch Mount
This upgraded stiffer STi pitch mount reduces engine motion under hard acceleration. Power that is wasted thrashing your engine around can be put to better use at the wheels! And...
Carbon Fiber Alternator Cover 2002-2007 WRX/STI
This very attractive piece looks great and (of course!) is light weight. Real carbon fiber, not some "carbon look" plastic. Fits all 2002-2007 WRX and WRX STI.
STi Group N Engine Mount Set
These genuine STi Group N engine mounts feature stiffer rubber for reduced engine motion, which leads to better throttle response and less driveline lash. (Yes, they do also transmit more...
Cobb Tuning Battery Hold-Down
A little under-hood style goes a long way at local meets and car shows. Cobb Tuning's 6061 T6 billet aluminum battery tie downs are available in anodized blue or black...
Vibrant Silicone Vacuum Hose Kit
Vibrant silicone vacuum hose is designed to handle the extreme conditions found in high performance engines. These hoses will not collapse under high vacuum conditions and don't peel, crack or...
Alternator 2002-2005 WRX
From Mitsubishi Electric, manufacturers of the factory alternator in your WRX. Labelled as "remanufactured" but we strongly suspect these are brand-new OEM parts. Fits all 2002-2005 WRX.
Subaru Windshield Washer Fluid Bottle 2002-2005 WRX
Over the years the factory washer fluid reservoir gets brittle. Sometimes they crack just from being touched. This factory-fresh unit will serve you for years to come. Fits all 2002-2005...
Oil Cooler O-Ring Kit EJ25
Most turbo Subaru EJ25 motors have a factory-installed oil cooler, which uses O-rings to seal it. These can dry out and leak over time. Here's the Subaru OEM replacement parts....
Fluidampr Engine Damper 2015+ WRX & FR-S/BRZ
A Fluidampr performance damper creates a foundation for improved durability and performance by providing long lasting, broad range protection against destructive crankshaft torsional vibration commonly found with engine modifications. It...
Raceseng AC Delete 2013+ BRZ/FR-S
The Raceseng AC Delete is for the tuner and racer that is looking to get the most power out of their FA20 engine. Not only is the AC compressor very...
LIC Motorsports Air Pump Delete Plates
The LIC Motorsports air pump delete plates (aka block-off plates) are used to bypass the air pump solenoids that are prone to failure on the newer model vehicles. Unlike other blockoff...
JDM ABS Cover 2008-2014 WRX/STI
OEM Subaru part. Includes two mounting clips.
Subaru JDM Battery Cover 2008-2014 WRX/STI
Requires slight trimming and drilling, comes with two mounting clips.
Carbon Fiber Alternator Cover 2008-2014 WRX/STI
This very attractive piece looks great and (of course!) is light weight. Real carbon fiber, not some "carbon look" plastic. Fits all 2008-2014 WRX and 2008-2017 STI.
Subaru OEM Alternator 2011-2012 WRX/STI
Brand-new OEM Subaru alternator. Fits all 2011-2012 WRX and STI. (Forester XT, too.) Photo is representative; actual part may vary slightly in appearance.
TurboXS Vacuum Pump Cover 2015+ WRX
The TurboXS vacuum pump cover is milled from a solid block of 6061 aluminum and then anodized in your choice of four colors. Bolts directly on in place of the...
Perrin Engine Cover Kit for 2015-16 WRX
Add a bit of flair and accent your WRX engine bay with the PERRIN Engine Cover Kit. This kit replaces your OEM plastic engine cover with metal shrouds that look...
GrimmSpeed Alternator Cover
Tired of being teased for your corroded alternator and boring engine bay? Step your alternator cover game up; GrimmSpeed has just what you need. This cover mounts securely in place...
Perrin Pitch Stop Brace 2015+ WRX / STI
The OEM pitch stop brackets fail over time. Help Prevent this failure with The Perrin Pitch Stop Brace. Under normal driving conditions, the drivetrain is constantly moving back and forth. This...
Subaru Windshield Washer Fluid Tank Cap
OEM Subaru washer fluid tank cap. Fits all 2002-2005 WRX/STI.
Mishimoto Oil Cooler Kit for 2015+ Subaru STI
The Subaru STI provides a great balance of power, handling, and reliability. As with any vehicle, controlling fluid temperatures will ensure consistent power and engine longevity. The Mishimoto Subaru STI oil...
iWire Rear Oxygen Sensor Extension Harness
Aftermarket downpipes often relocate the rear oxygen sensor farther away, leading to stress on both the harness and sensor that can result in failure. iWire's rear oxygen sensor extension lengthens...
Replacement Alternator Plug Housing
The plastic part of the Subaru alternator plug often breaks. Fix it up with this replacement plug housing. Re-use your existing pins. Fits all 1999 and newer WRX, STI, Legacy,...
IAG Street Series Air / Oil Separator (AOS) 2008-2014 Subaru WRX/STI
The IAG Performance Street Series billet aluminum Air / Oil separator (AOS) vents crankcase gasses back to the turbo inlet. The design is based on years of service on racing...
IAG Street Series Air / Oil Separator (AOS) 2006-07 Subaru Impreza WRX & 2004-07 STI
The IAG Performance Street Series billet aluminum Air / Oil separator (AOS) vents crankcase gasses back to the turbo inlet. The design is based on years of service on racing...
IAG EGR Block Off Kit Subaru 2015+ WRX
The IAG Performance EGR block off kit for the 2015-2017 WRX is designed to slow down the buildup of carbon deposits on the FA20 DIT intake valves and cylinder head...
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