These new 1.71g clutch shoes are somewhat lighter compared to the stock aluminum shoes, allowing the engine to spool up a little more before the footwear grab the flywheel. The outcome is a clutch which will engage later in the powerband providing more rip out from the corners.
WARNING: when working with #358582 1.1mm Clutch Springs with one of these clutch shoes you have to somewhat change them - check the supplementary sheet within the "Download area".
Product improve: the product ended up being updated and now will fit also the #358582 Clutch Springs 1.1mm. The newest clutch shoes are labeled Aluminum Clutch footwear - Light 1.71g for 1.1mm Springs (3) or Aluminum Clutch Shoes - Light 1.71g - CNC Machined (3).