A'PEXi - N1 Evo Extreme Muffler 2020+ Toyota GR Supra A90


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.

- High-level of quality using tig-welded SUS304 stainless steel uniting quiet performance with high-power performance gains
- Matched and manufactured for select chassis
- Patented Megaphone piping structure to produce excellent torque and throttle response throughout the powerband. This piping design allows for a swirling exhaust gas flow effect that has for years produced proven results

Bolt-On Yes
Part Number

164-KT16 (Resonated)

164-KT16P (Non-Resonated)

Year 2020
Make Toyota
Model GR Supra (AT/MT)
Body Style 2-Door Coupe
Engine B58 (AT/MT)
Chassis DB42 (A90)
Exhaust Type N1 Evolution Extreme Muffler (N1-X)
Piping Diameter 80mm. -> 60.5mm. x 2 -> 70mm. x 2
Tip Diameter 123mm. x 2
Pieces 4
Exhaust Tip Style Titanium Round- Dual wall rolled, Angle cut (Riveted)
Piping Material SUS304 Stainless Steel
Muffler Material SUS304 Stainless Steel
Muffler Tip Material Titanium
System Weight 54.23 lbs. (Stock- 54.45 lbs.)
Sound Level Sound Level: 84.4 dB @ 4,500 RPM
Special Notes Built-In Exhaust Valve- Compatible with OEM Valve Actuator/Motor Assy.
NOTE: Do not use harsh chemicals or metal polish cleaners when cleaning titanium tips. We recommend using standard isopropyl alcohol
WARNING: California Prop 65
Cancer & Reproductive Harm 

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