APEXi  |  SKU: #164-KT16

APEXi N1-X Evolution Extreme Muffler Toyota GR Supra 2019-2023+



The N1 Evolution Extreme is based on the proven performance basics of the N1 muffler which emphasizes optimum exhaust efficiency utilizing a straight-thru layout design. Equipped with an internal hybrid silencer uniting power and free flowing characteristics with effective functional sound resonance. A newly adopted muffler tip completes the tail end of the exhaust that serves both purposes of function and form. Constructed with a light weight titanium material rolled and riveted onto a double pipe structure which acts as a diffuser enabling temperature reduction, meanwhile retaining a sporty heat gradiation appearance.


  • SUS304 Stainless Steel Construction
  • All hand TIG-Welded by A'PEXi Japan
  • Piping Diameter: See diagrams below
  • Tip Diameter: 123mm. x 2
  • Titanium Round- Dual wall rolled, Angle cut (Riveted)
  • Single integrated Valve


  • Toyota GR Supra A90


  • Built-In Exhaust Valve- Compatible with OEM Valve Actuator/Motor Assy.
    • Do not use harsh chemicals or metal polish cleaners when cleaning titanium tips. We recommend using standard isopropyl alcohol

    Delivery & Shipping

    • This item is shipped directly from our manufacturer and/or distributor, and may take 3-5 business days for dispatch. Tracking information will be provided once shipped.