Back to JDM’s Golden Era!
90s-inspired aggressive sound for 2022+ WRX

 

 

■Features

• Striking Presence
  Featuring an 85mm pipe and a bullet-style muffler with a single right-side exit, it delivers an overwhelming presence and a distinctly race-inspired look.
• Volume control for every driving scene
  The inner silencer can be attached or removed to control both volume and tone. Keep it moderate for city driving, or remove it for a more aggressive, sporty sound for the track.
• Adjustable tail tip
  The adjustable tail tip allows you to adjust how far the tail extends, letting you achieve your ideal, personalized style.

 

 

 

 

 

Remarks

 

*Note: Proximity exhaust noise measured according to California standards. Sound level recorded at 75% of maximum engine RPM.

 

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●Performance

 

 

Test vehicle：2022+WRX
Spec：VAC II (45009-AF001)

*The graphs and figures shown are based on in-house testing and may vary depending on the vehicle and measurement equipment.
※Results are from testing conducted in 5th gear on a CVT-equipped vehicle.

 

• Enhanced High-RPM Power
  Output surpasses the stock exhaust in the high-rev range (5000–6000 rpm), delivering up to +11.7 kW. This added power gives the car noticeably stronger pull in the latter half of acceleration, letting you feel a clear improvement in top-end performance.
• Stronger Mid-Range Torque
  Torque surpasses the stock exhaust in the mid-range (3000–4000 rpm), delivering up to +14.9 N·m. This improvement provides noticeably more punch and responsiveness, letting you enjoy more powerful acceleration than ever before.

 

 

●Sound Quality Comparison

 

*Note: Proximity exhaust noise measured according to California standards.
Sound level recorded at 75% of maximum engine RPM.

 

 

■Features

• Enhanced Boxer Sound for an Amplified Heartbeat
  The iconic boxer engine sound is attractively amplified through HKS sound tuning.
• Sporty Sound with Emphasized Highs
  Compare to the stock muffler, the accentuated high frequency deliver a pleasant, engaging tone.
• Enjoy Sound Adapted to the Scene
  With the inner silencer installed, this exhaust delivers a subdued sporty tone. Removing it transforms the sound into a powerful, racing-inspired roar.

 

 

●Layout Comparison

• Overwhelming Presence & High Power with Low Backpressure
  Compared to the stock 60mm pipes, this product used 85mm pipes, giving it an overwhelming presence. Additionally, the silencer features a straight-through design without any restrictions, achieving high output with low backpressure and completely transforming the driving experience.
• Significant Weight Reduction
  Switching from a quad-exit to a single-exit and removing the mid-silencer results in a significant weight reduction, enhancing overall driving performance.
• Adjustable Tail Tip
  The tail tip features a sliding adjustment mechanism, allowing you to customize the protrusion to your preference and enjoy a personalized look.

 

 

 

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About HKS muffler

*1: About center pipe
Diameter of center pipe is the portion that has the largest diameter. (Excluding silencer and tip.) It is the condition with stock suspension.

*2: Minimum road clearance between HKS muffler (Any parts included in the kit) and road surface. Therefore, it may be different from actual road clearance of the vehicle.
The data is basically the condition with stock suspension. However, please understand that some items have data with low down spring or ride height adjustable suspension kit.

Caution: Hook, bracket, stay may be changed without prior notice.

★ Exhaust noise level at idle.