Tomei Timing Belt Guide – Subaru WRX/STI/Forester XT/Liberty GT (EJ20/EJ25)

Overview
Horizontally opposed engines combust structurally at 180 degrees, which increases the chances of camshafts not performing at their maximum lift. Installing high-lift camshafts in these engines can create unnecessary belt vibration, leading to the pulley spinning off the rotating assembly. If the pulley dislodges, piston-to-valve contact is guaranteed. The OEM solution is a thin sheet metal belt guide, but it lacks the strength and rigidity needed to securely maintain the belt and pulley under these conditions.

Tomei Powered has engineered a reinforced timing belt guide cut from solid aluminium. Its extended length design applies more secure tension to the timing belt, preventing whip and stabilising the pulley during sudden torque changes. The anodised surface ensures smooth, precise belt tracking while offering superior durability compared to the OEM component.

Key Features

• Beefy aluminium construction for maximum rigidity
• Extended length applies more secure tension to the timing belt
• Eliminates belt whip during rapid torque changes
• Prevents piston-to-valve contact in case of pulley issues
• Anodised finish for smooth operation and durability
• Direct replacement for the weak OEM sheet metal guide

Vehicle Compatibility

• Subaru WRX (EJ20/EJ25)
• Subaru WRX STI (EJ20/EJ25)
• Subaru Forester XT (EJ25)
• Subaru Liberty GT (EJ25)