STi 6-speed Shift Knob Line:
STi Piston Knob:
I completed the first aluminum STi 6-speed shift knob which will screw directly onto the shift lever in place of the stock piece. This may be the first piston-style for the STi in the world? It has a recess in the underside which is wide and deep enough to allow the reverse lockout ring to slide up into it (same dimensions as stock). It is internally threaded 1" deep with the STi 12x1.25 tap.
Diameter: 1.5" on top, 1.2" on bottom
Weight: Approx same as stock, will take gram measurement tomorrow.
I test-drove it on my WRX for a couple minutes and it feels just right. Not balky, not too light, good size, easy to grip, good weight. I can make a different design, but I felt like doing this for the 1st ever Piston knob for the STi
STi Sphere Knob:
This knob also screws directly onto the shift lever. It is finished in dull satin / brushed aluminum.
Weight: 132 grams
WC Lathe Werks