Tomei EXPREME Exhaust Manifold Twin Scroll
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Universal fit — compatible with all vehicles
$2,070.00
SKU:
414001
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Tomei EXPREME Twin Scroll Exhaust Manifold for the EJ20 powered Subaru WRX STI. High-performance 4-2-2 layout with Φ42.7-45.0mm runners in SUS304 stainless steel. Designed for twin scroll turbo applications, delivering optimised power, torque and throttle response across the entire rev range. Significantly lighter than factory at 9.7kg versus 13.1kg stock with thicker 2.0mm pipe walls for durability.
Vehicle Compatibility
| Make | Model | Chassis | Engine | Notes |
|---|---|---|---|---|
| Subaru | Impreza WRX STI | GDB (C/D) | EJ207 | Twin scroll turbo equipped |
| Subaru | Impreza WRX STI | GDB (E/F/G) | EJ207 | Twin scroll turbo equipped |
| Subaru | Impreza WRX STI | GRB/GVB | EJ207 | Twin scroll turbo equipped |
| Subaru | WRX STI | VAB | EJ20Y | Twin scroll turbo equipped |
Technical Specifications
| Specification | Tomei | Stock |
|---|---|---|
| Part Number | 414001 | – |
| Material | SUS304 Stainless Steel | – |
| Layout | 4-2-2 | 4-2-2 |
| Port Exit to Collector | Φ42.7mm | Φ42.7mm |
| Collector to Support Pipe | Φ45.0mm | Φ42.7mm |
| Support Pipe | Φ45.0mm | Φ42.7mm |
| Pipe Thickness | 2.0mm | 1.5mm |
| Weight | 9.7kg | 13.1kg |
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