Pro-Fit Base Layers - Bottom K20Z FRP hand-laid composite structure built

FRP hand-laid composite structure built for strength and durability

The ECU comes with a USB cable and a connector and terminals for additional functions

083 long ratio 1st gear

Black anodizing with laser engraving

custom designed and proudly manufactured in the US

Pro-Fit Base Layers - Bottom K20Z FRP hand-laid composite structure builtSFI 3. 3. The NEW Simpson Pro Fit Base Layers are our most comfortable and best fitting base layers. Constructed in Italy using the latest techniques, the Pro Fit provides superior softness and stretchability. The trusted Nomex material gives you an added layer of protection while maintaining breathability and comfort.