GFB Lightweight Underdrive 3 Pulley Kit Blow Off Valves I've always liked the KA24

I've always liked the KA24 with its high comp

1% in the non linear range

including 100% static flow testing and multi-point dynamic testing

2012-2016 Subaru BRZ (Manual/Auto)

IRIDIUM POWER is shown on above

GFB Lightweight Underdrive 3 Pulley Kit Blow Off Valves I've always liked the KA24GFB lightweight pulley kits are made from aircraft grade 6061 T6 aluminium and offer faster acceleration through significant weight reduction on the crankshaft. Most of our kits are underdriven, which means the accessories are driven slightly slower to reduce parasitic losses. GFB pulley kits are designed to improve acceleration by reducing the rotational mass (inertia) on the crankshaft as well as parasitic loads from the driven accessories. The