GFB Lightweight Alternator Pulley | Subaru BRZ / Scion FR-S (13+) (2221)

Name: GFB Lightweight Alternator Pulley | Subaru BRZ / Scion FR-S (13+) (2221)
Brand: Go Fast Bits
Price: 48.53 USD
Availability: InStock

GFB Lightweight Alternator Pulley | Subaru BRZ / Scion FR-S (13+) (2221)

SKU:2221

In stock

$48.53 USD

~~$67.90 USD~~ $48.53 USD

ADDITIONAL DISCOUNTS APPLIED AT CHECKOUT Sold out

Product variants

Quantity

▶ Vehicle Fitments

Year	Make	Model
2012 - 2016	Scion	FR-S
2012 - 2021	Subaru	BRZ
2016 - 2022	Toyota	86

The GFB 13+ Subaru BRZ / 13+ Scion FR-S Lightweight Alternator Pulley is a performance upgrade designed to reduce rotating mass and improve engine responsiveness. Crafted from a single billet of 6061-T6 aluminum and precision CNC machined, this pulley kit offers a significant weight reduction that enhances throttle response and accelerative performance. Its lightweight construction provides a bolt-on solution that does not require supporting modifications or tuning, making it an efficient upgrade for enthusiasts seeking immediate performance gains. The high-quality materials and precise manufacturing ensure durability and reliable operation under demanding conditions, contributing to a more responsive driving experience.

This alternator pulley is specifically designed for the 2013 and newer Subaru BRZ and Scion FR-S models. It fits models equipped with the stock alternator and is intended for street and performance driving, offering a straightforward installation as a direct bolt-on replacement. The kit includes the lightweight pulley itself, with no additional components required. Suitable for drivers looking to enhance throttle response and engine efficiency, this pulley upgrade is ideal for those aiming to optimize their vehicle’s performance without extensive modifications. It is compatible with the original engine configurations and provides a reliable, high-quality enhancement for daily driving or spirited runs.

Overview

Go Fast Bits GFB 13+ Lightweight Alternator Pulley

Fits 2013 and newer Subaru BRZ and Scion FR-S

Part #: 2221

Overview

The Go Fast Bits GFB 13+ Lightweight Alternator Pulley is a high-performance upgrade designed for Subaru BRZ and Scion FR-S owners seeking sharper throttle response and quicker acceleration. Crafted from a single billet of 6061-T6 aluminum and precision CNC machined, this pulley reduces the rotating mass of your engine’s accessory drive system, resulting in more immediate power delivery and enhanced driving engagement. It’s an ideal choice for enthusiasts looking to optimize their vehicle’s responsiveness without the need for additional supporting modifications or tuning. This lightweight pulley not only improves engine response but also contributes to a more refined engine feel during acceleration and deceleration. Its durable construction ensures long-lasting performance, making it suitable for daily driving or spirited driving sessions. Whether you’re upgrading for performance or simply want a more engaging driving experience, this pulley offers a straightforward bolt-on solution that complements your vehicle’s existing setup.

Key Features

Designed for enthusiasts who want to enhance their vehicle’s responsiveness, the GFB lightweight alternator pulley features:

Constructed from high-grade 6061-T6 aluminum for strength and lightness
Precision CNC machined for exact fit and smooth operation
Significantly reduces rotating mass to improve throttle response and acceleration
Easy bolt-on installation with no need for tuning or supporting mods
Durable finish to withstand daily driving conditions
Compatible with Subaru BRZ and Scion FR-S models from 2013 onward

Construction & Design

This pulley is machined from a single billet of 6061-T6 aluminum, a material known for its excellent strength-to-weight ratio and corrosion resistance. The CNC machining process ensures precise tolerances for a perfect fit and smooth operation, minimizing any potential vibrations or noise. Its lightweight design helps reduce the load on your engine’s accessory belt system, contributing to improved overall efficiency and response.

Driving Feel & Feedback

By decreasing the rotational mass of the alternator pulley, this upgrade delivers a more immediate throttle response and a feeling of increased engine agility. Drivers will notice quicker acceleration and a more direct connection between the accelerator pedal and engine output, enhancing the overall driving experience without altering the vehicle’s core performance.

Installation & Fitment

The GFB lightweight alternator pulley is designed for straightforward installation, requiring only basic tools. It bolts directly onto the stock alternator without modifications, making it an accessible upgrade for DIY enthusiasts and professional installers alike.