Throttle body return spring.
I tried to ask somewhere else too this question but I want to ask here too....
I need the throttle body return spring (the one behind the pulley) for my '2000 A1. I took it off more than 10 years ago because the throttle was too stiff and was fine, but now with the G2 throttle tube and the elliptical cam (the most elliptical available) it's too soft when I have to start to open the throttle so I need to make it stiffer.
Unfortunately I lost the spring so I need another one.