Description

The HKS Super Turbo Muffler Ti is the ultimate, full-titanium expression of performance exhaust engineering for the Gen2 GR Yaris. Representing the pinnacle of the Super Turbo Muffler lineup, this system delivers an exceptional combination of extreme weight reduction (~40% lighter than stock), measurable power gains, low exhaust backpressure, and a refined yet authoritative sport sound. Crafted entirely from lightweight TP270 titanium, it is the definitive exhaust upgrade for the enthusiast who demands the absolute best in material, performance, and motorsport pedigree.

Product Highlights

⚖️ Dramatic Weight Reduction with Titanium Construction
Weighing approximately 8.5kg, this full titanium system is ~40% lighter than the 14.1kg stock muffler. This significant reduction in unsprung and overall vehicle mass enhances agility, throttle response, and acceleration, contributing directly to performance beyond just power figures.

⚡ Verified Power & Efficiency Gains
Internal dyno testing confirms performance improvements over stock, with gains in both horsepower and torque. Critically, the system achieves extremely low exhaust backpressure—a reduction that grows with RPM—freeing the turbocharged G16E-GTS engine to breathe more efficiently and providing an optimal foundation for further tuning.

🎵 Engineered Sound: Powerful Yet Civilized
Utilizing development data from the GR Yaris Gen2 and GR Corolla, the dual-muffler titanium design produces a rich, powerful bass note under acceleration while actively suppressing unpleasant low-frequency drone and cabin resonance during normal cruising. The result is a sophisticated, motorsport-inspired soundtrack that complements the car’s character without compromise.

🔧 Gen2-Specific Titanium Engineering

• Optimized Layout & Flow: Features a true dual-pipe design (φ60.5 x 2) post-flange, moving away from the stock single-pipe restriction, paired with a resonator structure free of internal restrictions for maximum flow.

• Integrated Anti-Sway Kit: Includes HKS proprietary rubber stays and a special bracket to prevent lateral movement during hard cornering, ensuring durability and eliminating unwanted vibration.

• Certified & Compatible: Includes an exhaust gas test certificate (JQR30252055) and is compatible with the OEM Aero Performance Package.

✨ Premium Titanium Aesthetics
Crafted entirely from TP270 titanium, the system features a distinctive, gradient matte finish on the iconic 110mm slit-style tailpipes, which are engraved with the HKS logo. The main silencer, visible beneath the bumper, showcases the exquisite handcrafted welds and raw beauty of the material for a purposeful, race-bred appearance.

Technical Specifications & Compatibility

• Product Name: Super Turbo Muffler Ti

• Model Code: 31030-AT002

• Compatibility: Toyota GR Yaris (4BA-GXPA16, G16E-GTS, April 2024+ Gen2 ONLY). For MT models with rear LSD.

• Material: Full TP270 Titanium Construction

• Weight: 8.5 kg (vs. Stock 14.1 kg)

• Performance Data (HKS Ti vs. Stock):

  • Max Power: 208.7kW (283.8PS) vs. 205.9kW (280.0PS)

  • Max Torque: 429.6N·m (43.8kgf·m) vs. 428.8N·m (43.7kgf·m)

• Key Feature: Extremely low exhaust backpressure, full titanium build.

• Certification: Includes certification number JQR30252055.

Performance Philosophy

• Goal: To deliver the maximum possible performance and sensory enhancement through the application of exotic materials and precision engineering. The focus is on unsprung weight savings, optimal flow efficiency, and acoustic refinement, creating an exhaust that is as much a performance component as a statement of intent.

• Focus: The ultimate, no-compromise exhaust system for the serious GR Yaris enthusiast. It is designed for owners who understand the value of titanium’s weight savings and durability, and who seek the perfect balance of increased power, intoxicating sound, and stunning visual appeal.

Installation & Requirements

• 🔧 Professional Installation Mandatory
  Titanium requires specific installation techniques. Professional fitting is essential to ensure proper alignment, avoid stress on the lightweight material, and guarantee a perfect seal.

• ⚠️ Critical Compatibility Notice
  This system is ONLY compatible with the post-April 2024 “Gen2” GR Yaris. It will not fit earlier model years.

Torque/output maximum value