$699.00
Kartboy's 1.5" lift kit for 2018+ Subaru Crosstrek and 2019+ Subaru Forester is our most comprehensive lift kit solution. Each kit includes a complete set of suspension spacers, trailing arm...
$165.00 $199.00
Fabricated right here in the US from CNC'd and TIG welded 4130 chromoly steel, Kartboy's short throw shifter shortens shift travel by 40%. This combo kit also includes the excellent...
$165.00 $199.00
Fabricated right here in the US from CNC'd and TIG welded 4130 chromoly steel, Kartboy's short throw shifter shortens shift travel by 40%. This combo kit also includes the excellent...
$99.00
Fabricated right here in the US from CNC'd and TIG welded 4130 chromoly steel, Kartboy's short throw shifter shortens shift travel by 40%.Simple installation takes about an hour. (Allow a little longer...
$200.00
Fabricated right here in the US from CNC'd and TIG welded 4130 chromoly steel, Kartboy's short throw shifter shortens shift travel by 40%. This combo (or maybe we should say...
$45.00 $45.00
It's cool, it's inexpensive, and it's made in the good old U.S. of A. The Kartboy shift knob is a DIRECT replacement shift knob -- no goofy adapters to come...
$45.00 $45.00
From the CNC wizards at Kartboy, this shift knob is designed exclusively for your six-speed manual Subaru tranny. (Sorry, automatic owners, it's not for you.) It threads directly on, and...
$35.00
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....
$200.00
Subaru's stock sway bar end links are spindly little things, and are especially overtaxed if you upgrade to larger diameter sway bars. Beef up your roll stiffness with these 6061-T6...
$200.00
Subaru's stock sway bar end links are spindly little things, and are especially overtaxed if you upgrade to larger diameter sway bars. Beef up your roll stiffness with these 6061-T6...
$200.00
Subaru's stock sway bar end links are spindly little things, and are especially overtaxed if you upgrade to larger diameter sway bars. Beef up your roll stiffness with these 6061-T6...
$200.00
Subaru's stock sway bar end links are spindly little things, and are especially overtaxed if you upgrade to larger diameter sway bars. Beef up your roll stiffness with these 6061-T6...
$200.00
Subaru's stock sway bar end links are spindly little things, and are especially overtaxed if you upgrade to larger diameter sway bars. Beef up your roll stiffness with these 6061-T6...
$200.00
Subaru's stock sway bar end links are spindly little things, and are especially overtaxed if you upgrade to larger diameter sway bars. Beef up your roll stiffness with these 6061-T6...
$215.00
Subaru's stock sway bar end links are spindly little things, and are especially overtaxed if you upgrade to larger diameter sway bars. Beef up your roll stiffness with these 6061-T6...
$115.00
The stock rear suspension on the WRX features a hard plastic sway bar link (with rubber bushings) that is quite flexible. Beef up your rear roll stiffness with these 6061-T6...
$115.00
Beef up your front roll stiffness with these 6061-T6 billet aluminum replacement sway bar end links. They come with polyurethane bushings pre-installed, so installation is a cinch. Fits the following:...
$115.00
Beef up your rear roll stiffness with these 6061-T6 billet aluminum replacement sway bar end links. They come with polyurethane bushings pre-installed, so installation is a cinch. Sold in sets...
$125.00
Beef up your front roll stiffness with these 6061-T6 billet aluminum replacement sway bar end links. They come with polyurethane bushings pre-installed, so installation is a cinch. Fits all 2015+ STI.
$115.00
The stock rear suspension on the WRX features a hard plastic sway bar link (with rubber bushings) that is quite flexible. Beef up your rear roll stiffness with these 6061-T6...
$135.00 $150.00
Beef up your rear roll stiffness with these 6061-T6 billet aluminum replacements. They come with polyurethane bushings pre-installed, so installation is a cinch. Sold as a set of two endlinks. Includes...
$135.00 $150.00
Beef up your rear roll stiffness with these 6061-T6 billet aluminum replacements. They come with polyurethane bushings pre-installed, so installation is a cinch. Sold as a set of two endlinks. Includes...
$135.00 $150.00
Beef up your rear roll stiffness with these 6061-T6 billet aluminum replacements. They come with polyurethane bushings pre-installed, so installation is a cinch. Sold as a set of two end...
$135.00 $150.00
Beef up your rear roll stiffness with these 6061-T6 billet aluminum replacements. They come with polyurethane bushings pre-installed, so installation is a cinch. Sold as a set of two endlinks. Includes...
$30.00
These bolts are custom-machined from steel and polyurethane. They use existing holes in the rear subframe and unibody to lock the rear subframe together with the unibody. Sure, this adds...
$97.50 $99.00
The Kartboy crank pulley is milled from a shiny block of billet aluminum. Unlike some other manufacturers, Kartboy doesn't make the lightest possible pulley -- although at two pounds, it's...
$49.00
The Kartboy dead pedal is made of a solid block of aluminum, CNC-milled into a solid support for your left foot. (If you didn't already know, the dead pedal is...
$45.00 $45.00
Kartboy took their familiar "knuckleball" shift knob and machined it out of soft-touch Delrin. Delrin is excellent for not retaining heat, and its smooth-but-grippy finish is a good choice for...
$45.00
Kartboy took their familiar "flattened light bulb" shape and machined it out of soft-touch Delrin. Delrin is excellent for not retaining heat, and its smooth-but-grippy finish is a good choice...
$6.00
These spacers are required when using Kartboy front end links with Whiteline front anti-roll bars. Solid aluminum. Set of four spacers.
$15.00
This is a set of replacement hardware for front or rear Kartboy end links. You get four bolts, four matching mechanical lock nuts, and eight washers. Each kit contains enough...
$30.00 $32.00
Stock exhaust hangers are made of rubber, which is squishy and floppy. If you have a high-powered WRX with a large-bore exhaust, the stock hangers may not be enough to...
$35.00 $40.00
Stock exhaust hangers are made of rubber, which is squishy and floppy. If you have a high-powered WRX with a large-bore exhaust, the stock hangers may not be enough to...
$29.00
Made in the USA on Kartboy's CNC mills. Aluminum bar stock with a brushed look, Black anodized then laser-engraved with a mountain scene. Great way to cover the ugly holes...
$99.00
Kartboy's billet aluminum crank pulley reduces rotating mass by almost four pounds! (It's one pound, compared to the stock pulley at 4.9 pounds.) Precision CNC milled from a solid block...
$2.00
If your Kartboy shift knob logo has worn away, or you just want to change colors, we have extras for you. Sold individually.
$45.00 $50.00
The Kartboy oil cap in classic black. Includes a domed emblem, that can be put on once the cap has been installed, to suit your desired alignment. Re-use your existing gasket,...
$60.00
Are you tired of your stock 710 cap? Maybe you lost it when you were checking oil while fueling up. You don’t do that? Maybe you should start. But we...
$100.00 $120.00
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...
$32.00
These bushings replace squishy factory units where the rear differential carrier mounts to the car. Set of four custom harder bushings. Fits all 2008-2014 Impreza/WRX/STI.
$32.00
These bushings firm up the rear differential subframe with respect to the chassis of the car, reducing or eliminating the dreaded rear diff thump on hard acceleration. The polyurethane Kartboy...
$35.00
In stock now! This bushing is located at the rear of the shifter stay, and further reduces slop in the shifter mechanism. Fits all manual-transmission late-model Subaru Impreza, WRX, and...
$15.00
Replacement hardware for one end of a Kartboy end link. Two bushing halves, spacer, complete bolt/washers/nut. Works front or rear. NOT for wagon front end links.
$30.00 $32.00
The WRX comes with rubber shifter bushings intended to isolate the shifter from engine vibration. While they do accomplish this, they also make the shifting action vague and rubbery.Kartboy bushings...
$30.00 $32.00
The STI comes with rubber shifter bushings intended to isolate the shifter from engine vibration. While they do accomplish this, they also make the shifting action vague and rubbery.Kartboy bushings reduce...
$32.00
The Kartboy shifter lock reduced left-to-right play in the shifter of the 2015+ WRX, to give a tighter shift pattern with less slop. Installation is easy -- we installed one...
$109.00 $142.00
Precision CNC-machined and TIG-welded 4130 chromoly steel, the Kartboy short shifter may be the best bang-for-the-buck mod you will ever make. After all, you use it multiple times, every time...
$115.00
Kartboy's short shifter for the 2015+ WRX was designed to be compatible with ALL stock and aftermarket shifter bearings, levers, and stops, and was carefully engineered for the best "feel."...