GFB 13+ Subaru BRZ / 13+ Scion FR-S Lightweight Alternator Pulley
It might be hard to imagine how reducing the mass of a pulley makes a car go faster, but accelerating a heavy factory pulley from say 3000-7000 RPM in a second or two saps a measurable amount of torque. GFB Lightweight Pulleys reduce inertia by up to 85 percent, so most of the torque that used to accelerate the pulley can now be applied to the wheels.
- 0.16 lbs
- 4.000002 × 2.500001 × 1.500001 in
Enkei RPF1 18×8.5 5×114.3 30mm Offset 73mm Bore Matte Black Wheel Evo 8 & 9 / 350Z / G35
Whiteline VAG MK4/MK5 FWD Only Front 24mm Adjustable X-Heavy Duty Swaybar
Hawk 13 Subaru BRZ / 13 Scion FR-S HP Plus Front Street Brake Pads