HKS Super Turbo Muffler | Toyota GR Yaris Gen 1

HKS Super Turbo Muffler | Toyota GR Yaris Gen 1

The Ultimate High-Performance Exhaust for the G16E-GTS

The HKS Super Turbo Muffler is engineered for the GR Yaris owner who demands zero compromise. Most aftermarket exhausts force you to choose between high-flow performance and daily-driver comfort; HKS has utilized advanced acoustic engineering to deliver both.

Whether you are aiming for a Stage 1 ECU Map or building a 400HP+ track monster, this system provides the thermal efficiency and flow capacity required to unlock the full potential of the 1.6L turbocharged engine.

Advanced Engineering & Sound Quality

HKS is world-renowned for "Commitment to Sound." This system features a unique Silent Chamber and specialized silencer geometry designed to eliminate unpleasant low-frequency "drone" during motorway cruising, while releasing a deep, mechanical growl under hard acceleration.

• 30% Less Backpressure: Compared to the stock Toyota exhaust, this system offers significantly reduced resistance, allowing the turbo to spool faster and hold boost more effectively.
• 500HP Ready: This isn't just a styling upgrade; it is flow-tested to support builds up to 500 horsepower.
• Precision Manufacturing: Made in Japan from high-grade stainless steel with stunning tip finishing for a premium OEM+ look.

Complete Your Performance Build

To get the absolute most out of your HKS exhaust, we recommend the following supporting "Level 1" upgrades:

• ITG Carbon Intake: Pair the high-flow HKS rear-end with an ITG intake to allow the engine to breathe and exhale without restriction.
• Turbosmart Kompact BOV: Sharpen your throttle response and hold boost pressure more reliably between shifts.
• Whifbitz OPF/GPF Delete: For track-only vehicles, removing the restrictive OPF filter in conjunction with this exhaust is the single best way to unlock significant power and a truly raw exhaust note.
• STG ECU MAP: Once the hardware is fitted, an ECU Map is essential to optimize the fuelling and boost curves to take advantage of the increased flow.

Technical Specifications & Compatibility

• Fitment: Toyota GR Yaris Gen 1
• Construction: High-quality Stainless Steel
• Backpressure: 30% reduction vs. OEM
• Sound: Low-frequency drone reduction with high-RPM "Super Turbo" character.

Watch the HKS Exhaust in Action – Official Sound Clip

Professional Fitting & Shipping

We specialize in GR Yaris chassis and powertrain setups. We can fit the HKS Super Turbo Muffler for you at our Stratford-upon-Avon workshop. Our technicians will ensure a perfect alignment and a leak-free seal.

• Fitting: Contact us at sales@stringtheorygarage.com to get booked in, we offer free fitting on HKS Exhausts for GR Yaris.
• Lead Time: Usually 3-5 working days. Please enquire at the point of order for a live estimate.
• International Shipping: We ship worldwide. Get in touch for a bespoke shipping quote to your region.