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
CNC Machined, Press-Fit Bronze Bushings
The All-New Solid Shift Joints
The Original, Made in USA
Explore WRX & STI Short Shifters
CNC Machined, Polyurethane Bushings
Explore WRX & STI Swaybar Endlinks
WHAT'S NEW:
Rico Christian's bugeye WRX started as a car that was "basically ready to go to the dump." Battle of the Boxers third-place finisher, Rico sat down with us to talk about how a written-off shell, a wrecked Hawkeye, and a friend's totaled STI came together to build the car he now calls his dream car. Todays story has more behind than most builds you'll see scrolling on Instagram.
Top 5 Shifter Mods For Your Subaru
Knob wiggle and vague feel usually come from wear spread across several linkage parts. Here are five upgrades, from the pivot bushings up through the short shifter, and why they're easiest to do in one install.
The History of Kartboy and Turn In Concepts
How to Install the Kartboy Short Shifter in a 2004–2021 STI
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.