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Kartboy Brand

Kartboy Aluminum Crank Pulley for Subaru BRZ/WRX 2015-2018/FRS KB-050-FA/FB

Kartboy Crankshaft Pulley weighs in at 1 Pound. A good bit lighter than stock but not light enoug...

Kartboy Crankshaft Pulley weighs in at 1 Pound. A good bit lighter than stock but not light enough to throw a CE light. Free up a little crank HP and get some KB Bling.KB-050-FA/FB

$102.00

Kartboy Front License Plate Delete Black for Subaru WRX/STI/LEGACY/Forester KB-055-PL-BLK

Made in house on our CNC mills. Aluminum barstock with a brushed look, Black Anodized then engrav...

Made in house on our CNC mills. Aluminum barstock with a brushed look, Black Anodized then engraved with our stylish KARTBOY logo. Great way to cover the ugly holes on the factory bumper. All necessary hardware included. No drilling required.KB-055-PL-BLK

$39.00

Kartboy Transmission Bushing Insert for Subaru BRZ/Scion FR-S KB-025-Trans-BRZ

Kartboy Transmission Bushing Insert for Subaru BRZ/Scion FR-SKB-025-Trans-BRZ

Kartboy Transmission Bushing Insert for Subaru BRZ/Scion FR-SKB-025-Trans-BRZ

$37.00

Kartboy Rear Sway Bar End Links for Subaru WRX/STI 2008-2018/BRZ /FRS KB-017-08+Rear

Kartboy Rear Endlinks for the 2008 and up Subarus are here. Tested to work with almost every afte...

Kartboy Rear Endlinks for the 2008 and up Subarus are here. Tested to work with almost every aftermarket sway bars with great results. KB-017-08+Rear

$125.00

Kartboy Knuckleball White Delrin 5 Speed Shift Knob for Subaru Impreza/WRX KB-015-WD-5spd

Knuckleball (delrin 5spd) – You want a Knuckleball, but aluminum isn’t your thing? You’d rather h...

Knuckleball (delrin 5spd) – You want a Knuckleball, but aluminum isn’t your thing? You’d rather have a lighter shift knob cause your car is on a diet? Fear not, Gram Counter… Kartboy has you covered. This is the delrin version of our Knuckleball, and it weighs in at a scant 2.6 ounces – less than a deck of cards, cowboy.KB-015-WD-5spd

$53.00

Kartboy Pitch Stop Transmission Mount for Subaru WRX/STI/LEGACY/FORESTER KB-015-Pitch

For Subaru STI 04-19, 2002-2014 WRX, Forester 2005-2009Subaru Pitch Mount – What the heck is a pi...

For Subaru STI 04-19, 2002-2014 WRX, Forester 2005-2009Subaru Pitch Mount – What the heck is a pitch mount you ask? Well, step right up and we’ll tell ya, kids. During acceleration your engine wants to twist (roll), and lean back (pitch). But all that movement, which is caused by torque, just isn’t efficient. “Yeah, yeah, I know that,” you say? “I already did STi Transmission mounts,” you claim? Ok. Cool cool. Those are great for roll, but pitch still needs to be addressed. In case you’re sti...

$100.00

Kartboy Transmission Cross Member Bushing for Subaru WRX/STI/Legacy/Forester KB-025-Trans

Subaru Transmission Bushings – Tranny feeling sloppy? Shift shifts where shift shouldn’t shift? ...

Subaru Transmission Bushings – Tranny feeling sloppy? Shift shifts where shift shouldn’t shift? We get it, it happens. Over time the stock bushings between your transmission and the cross members wear out. It’s an age thing and happens to the best of us. This bushing kit will help you firm it back up, adding some precision back in your life. Gain drivetrain stability that was lost, have more precise shifts during high-performance driving, and regain some of that youthful exuberance of a mint...

$40.00

Kartboy Rear Swaybar Endlinks for Subaru Imprez 1997-2007/WRX 2002-2007 KB-017-WRX-R

End link WRX Rear – Oh, yeah… you got that stiffer rear sway bar out back helping you keep flat i...

End link WRX Rear – Oh, yeah… you got that stiffer rear sway bar out back helping you keep flat in corners. It’s probably adjustable, because you aren’t the kind of person to get locked into one situation. You need variety. No hemming you in, you wyld stallion. Hang on, though. You’re still using the stock end links? The plastic ones with the rubber bushings? That’s asking for a failure. Those stockers flex, bend, and can break with your stiff bar. Not very efficient, right? Get back to effic...

$115.00