Want to have a higher shift knob but don't want to increase the throw? Raise the whole base.
Version 2 uploaded! All I did was make the center section thinner so it uses less filament. They are just there to make install easier. Otherwise, they don't serve any functioning purpose so making them more very thin is fine.
This will raise the whole base up by 23mm. 23mm seems to be the max before the top of the base touches the plastic shroud for the shifter boot.
Aluminum shifter base bushings highly recommended. I have Boomba base bushings buy any base bushings from any brand will work just fine.
Requires longer bolts. M8x1.25-50mm is perfect.
Highly recommend adjusting underhood cable bushing to shortest setting. This is so you don't end up punching your HVAC.
Also highly recommend getting a short throw shifter. I have the Boomba and it works fine.
Shift knob is Boomba 390g for the GR Corolla. This requires an M12x1.25 to M10x1.25 adapter to work on the Boomba short throw shifter.
Printing:
Printed out of ASA using 100% infill
Infill type: concentric
Walls set to 3 (no need for higher walls since concentric is just that)
Recommended
Superglue your aluminum base bushings to the base for a much easier install.
Superglue a regular M8 washer to each of the bolt hole on the chassis to separate the spacers away from the chassis. Your exhaust runs right under this portion of the chassis. Helps with less heat transfer to the spacers.