EXART iVSC Muffler SUBARU WRX S4(VBH)

From our highly popular iVSC series of road-legal mufflers with variable valves, we are pleased to introduce the long-awaited lineup for the Subaru WRX S4 (VBH).

For this product, the main pipe diameter has been increased from the 60.5 mm used in the VAG model to 65 mm, achieving further improvements in exhaust efficiency.
(For reference, pipe diameter comparison:
Factory: φ60.5 → φ54 → φ42.7 ×2
VAG model: φ60.5 → φ60.5 → φ50.8 ×2
This product: φ65 → φ65 → end φ50.8 ×2)

In this model, the variable valve system has been upgraded from the conventional vacuum-operated type to an electric actuator type, which was previously available only as an option, and is now adopted as standard.
One of the key advantages of the electric type is that in situations where noise is a concern—such as during cold starts—the valve can be set to the closed position before starting the engine, allowing the exhaust sound to be reduced to a factory-equivalent level.

Excellent exhaust efficiency, refined sound quality, and an attractive appearance—all while remaining fully road-legal.

Why not upgrade your vehicle to the next level?
We look forward to your inquiries.

The tail end is available in three options:
stainless steel round tail (outer diameter φ101), titanium round tail (outer diameter φ101), and carbon fiber round tail (outer diameter φ101).