HKS Equal Length 4-1 Super Exhaust Manifold - Subaru WRX / STI EJ25 (2008+)
The HKS Equal Length 4-1 Super Exhaust Manifold is a high-performance exhaust manifold upgrade for the Subaru WRX and STI (2008+) equipped with the EJ25 engine. Designed with an equal-length 4-1 configuration, it improves exhaust flow, enhances throttle response, and increases overall engine efficiency while retaining the factory oil pan layout for straightforward installation.
The optimized equal-length design promotes balanced exhaust flow from each cylinder, improving turbocharger response and delivering a more immediate and precise throttle feel. In addition to the performance benefits, the manifold produces a sportier and more refined exhaust note that is noticeably different from the factory setup.
The improved throttle response makes the vehicle easier to control during spirited driving, while automatic transmission models also benefit from a more engaging driving experience with quicker, more responsive paddle-shift downshifts.
Features
- Fits Subaru WRX and STI (2008+) with the EJ25 engine.
- Equal-length 4-1 design for optimized exhaust flow.
- Improves throttle response and overall engine efficiency.
- Produces a sportier and more balanced exhaust note.
- Retains the factory oil pan layout for straightforward installation.
- Enhances drivability with quicker engine response.
- High-quality construction engineered for performance and long-term durability.
