Carefully Engineered. Built to Last.
Kartboy first gained recognition among Subaru enthusiasts in 1999 for its innovative product design and precision manufacturing. Quality endures.
“Yes, it’s true, Kartboy rocks. I just installed my STi short shifter and it feels great. There is a huge reduction in throw. The parts were top‑notch quality… Quick and easy install with the right tools… way to go Kartboy!”
— Ari Allen on NASIOC
“It’s a great upgrade, and probably the most bang for your buck performance wise for a hundred bucks… The throw is SIGNIFICANTLY shorter… much better over stock… Overall, best $138 mod you can do for your car.”
— evohuntinwrx on NASIOC
“I’ve had Kartboys on all 3 of the Subarus that I have owned, wouldn’t trade them for anything…”“…it turns your car into something completely different!”
— spritef @ r/subaru
The Original, Made in USA
Explore WRX & STI Short Shifters
CNC Machined, Polyurethane Bushings
Explore WRX & STI Swaybar Endlinks
WHAT'S NEW:
Why the Kartboy Solid Shifter U-Joint Is the Best Option on the Market. Period.
Most "solid" shifter U-joints force you to choose between tight and free-moving — tighten them down and they bind, back them off and they work loose. Kartboy's crush-tube design does both at once. Here's the engineering that actually solves sloppy shifter feel for good.
How to Install the Kartboy Short Shifter — 2015+ WRX (Cable Shifter)
Swap in the Kartboy Short Shifter on your 2015+ WRX cable-shift transmission for a shorter throw and a tighter gate — here's the full under-car install, step by step.
How to Install the Kartboy Solid Shifter Joint For 6 Speed
The factory U-joint on your 6-speed STI has rubber bushings that wear out and eventually turn your shifter into a sloppy mess. This step-by-step guide walks you through swapping in the Kartboy Solid Shifter Joint — machined from one-piece stainless steel with self-lubricating bronze bushings, roll pin removal tips, and how to get it all back together right the first time.
How to Install the Kartboy 5 speed Solid Shifter Joint and 5-Speed Clevis
Step-by-step installation guide for the Kartboy Solid Shift Joint and 5-speed clevis. Covers full shifter linkage removal, bench prep, greasing, and reinstall — including GC8-specific tips on roll pin removal, selector rod alignment, and correct joint orientation.
Wicked Big Meet and the $1,000 Car That Refused to Die
What started as a throwaway flip — a rust bucket buried in Jersey snow with a screaming transmission and no power steering — turned into one of the most honest builds in the Subaru community right now. Demetri Xanthos, owner of Prime Motoring, sat down with us to talk about building his shop, the legend of the original Eggplant, and a $1,000 GD that just keeps making more power.