Benefits

High performance, lightweight, geared starter motor

Huge increase in cranking power - often double the original unit
Draws less current ensuring longer battery life
Starts engine even when hot and compression is high
Direct replacement
Easier to fit
Up to 50% lighter

High performance, lightweight alternator

Lightweight
High power
Direct replacement for original with identical appearance
Easier to fit with single wire connection
Twin Internal Fans for greater cooling

High performance, lightweight dynamo replacement

80% more power
All the advantages of an alternator
Direct replacement for original dynamo 
Easier to fit with single wire connection
40% lighter