
GFB 2221 Lightweight Alternator Pulley

GFB lightweight underdrive pulley kit SUBARU STi MY99 00
2-piece underdrive pulley kit (Crank and alternator pulleys & belts. Suits WRX/STi MY94-07, Forester MY98-07, Legacy MY03-07)
$299.00 Original price was: $299.00.$269.10Current price is: $269.10.
2-piece underdrive pulley kit (Crank and alternator pulleys & belts. Suits WRX/STi MY94-07, Forester MY98-07, Legacy MY03-07)
2-Piece Underdrive Pulley Kit – Subaru WRX/STi, Forester & Legacy
Upgrade your Subaru’s performance with the GFB 2-Piece Underdrive Pulley Kit, designed to reduce crank and alternator load, improve throttle response, and enhance turbo efficiency. Perfect for turbocharged Subaru engines, this kit delivers lightweight precision and reliable durability.
✅ Key Features:
- Fitment: Subaru WRX/STi MY94–07, Forester MY98–07, Legacy MY03–07
- Also Fits: WRX MY01–02 (Bugeye), STi MY02 (Bugeye STI), B4 (BE, BH, BT) EJ20TT MY98–03, W2RX MY01–02
- Kit Includes: Crank pulley, alternator pulley, and high-quality belts
- Performance Boost: Reduces accessory drag for faster rev response and improved turbo spool
- Durable Construction: Made from lightweight, high-strength materials to handle daily driving and track use
⚡ Why Choose This Underdrive Pulley Kit?
- Optimizes engine efficiency by reducing parasitic losses
- Enhances throttle response and overall Subaru performance
- Engineered for a perfect fit on multiple WRX/STi, Forester, and Legacy models
- Compatible with EJ20TT and turbocharged EJ engines
🛠️ Installation Notes:
- For MY02 STI, use the 2001 kit
- For MY03–05 STI, GFB recommends the 2010 3-piece kit for complete compatibility
Upgrade your Subaru today with this performance underdrive pulley kit and enjoy smoother, faster, and more responsive driving. Perfect for street and track enthusiasts looking to maximize their turbo Subaru engine performance.
Shop now and take your WRX, STi, Forester, or Legacy to the next level!
| Weight | 0.6 kg |
|---|---|
| Dimensions | 17.5 × 16.5 × 8 cm |
Only logged in customers who have purchased this product may leave a review.
Related products
-
GFB-7162 Cap Spacer
🔧 Product Description The GFB-7162 Cap Spacer is a genuine replacement and setup component designed specifically for Go Fast Bits EX38 and EX44 external wastegates. This […]
$29.50Original price was: $29.50.$26.55Current price is: $26.55. -
Plunger spring for DV+ suits part numbers T9351-T9359
🔧 Product Description Plunger spring for DV+ suits part numbers T9351-T9359 is a genuine Go Fast Bits (GFB) spare plunger spring designed specifically for the DV+ range […]
$9.30Original price was: $9.30.$8.37Current price is: $8.37. -
MACH 2 TMS (Silvia/200SX S14-15)
🔧 Product Description The Mach 2 TMS Recirculating Diverter Valve from Go Fast Bits is a high-performance OEM replacement designed specifically for Nissan SR20DET turbocharged engines, […]
$244.00Original price was: $244.00.$219.60Current price is: $219.60.







Reviews
There are no reviews yet.