Go Fast Bits Subaru BRZ/86/FR-S Lightweight Alternator Pulley
In stock. Ships the same business day if ordered by 4pm ET. Special order. Ships from the manufacturer. Call us for the current lead time.
Like all GFB lightweight pulleys, these begin life as a single 6061-T6 aluminium alloy billet, which is then precision CNC machined to exacting tolerances. We then anodize them black for a stealthy appearance and superior wear resistance.
This kit is supplied with 3 pulleys, not just for looks – the combined saving of 2.2 kg is significantly more than what is achieved by replacing just the crank pulley alone.
The weight doesn’t tell the whole story either – even though the saving is a significant 77%, the actual rotating inertia reduction (inertia is what counts) is 83%.
Like all GFB lightweight pulley kits, you can feel the improvements:
- Sharper throttle response
- Engine feels more willing to rev
- Stronger “urge”
Fitments:
- TOYOTA 86 (ZN6) GT-GTS 12-On
- SUBARU BRZ MY12-On
