The HKS Upgraded Timing Belt fits Subaru EJ20 and EJ25 engines (HKS 24999-AF001), covering 2002-2008 WRX and 2004-2008 STI and related Legacy GT / Forester XT applications. HKS Fine Tune belts use heat-resistant H-NBR grade tooth rubber and a strengthened construction that holds stable tension under heat expansion and high RPM, reducing cracking, stretch, and tooth skip versus an OEM belt. Designed for tuned, high-output engines and suited for use with the HKS Slide Cam-Pulley.
| Series | HKS Fine Tune |
| Type | Timing Belt |
| Engine | Subaru EJ20 / EJ25 |
| Application | 02-08 WRX, 04-08 STI (also Legacy GT, Forester XT) |
| HKS Part Number | 24999-AF001 |
| Construction | Heat-resistant H-NBR; reinforced |
| Part Number | 24999-AF001 |
Shipping: In-stock orders placed before 3 PM EST ship the same day, and everything else ships within 24 hours. Standard, expedited, and overnight options are available at checkout. Backordered items ship as soon as we get them back in stock. Contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
