Experience the perfect balance of power, precision, and craftsmanship with the A’PEXi N1 Evolution Extreme exhaust system — engineered for the 2015+ Lexus RC-F. Built upon decades of motorsport innovation, the N1 Evolution Extreme delivers maximum exhaust efficiency through a straight-through design and patented megaphone piping structure that enhances throttle response and torque across the powerband.
Handcrafted from TIG-welded SUS304 stainless steel, this system provides both durability and beauty, uniting quiet refinement with high-performance gains. The unique hybrid silencer design ensures a deep, refined tone without excessive cabin drone, while the angled dual-wall rolled tips complete the look of true JDM performance.
Key Features
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Premium Construction – TIG-welded SUS304 stainless steel ensures long-term reliability and corrosion resistance.
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Proven Performance – Patented megaphone piping delivers enhanced torque and throttle response.
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Hybrid Silencer Design – Combines free-flow power with functional sound control for balanced street performance.
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Lightweight Design – 55.4 lbs total system weight vs. 74.7 lbs stock.
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Direct Bolt-On Installation – No modifications required.
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Signature Sound – Deep, aggressive tone rated at 95.7 dB @ 4,500 RPM.
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Modular System – Midpipe and rear section can be interchanged with factory exhaust components.
 
Specifications
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Exhaust Type: N1 Evolution Extreme Muffler (N1-X)
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Piping Diameter: 65mm x 2 → 50mm x 4
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Tip Diameter: 93mm x 4
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Tip Style: Oval, dual-wall rolled, angle cut
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Pieces: 5
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Material: SUS304 Stainless Steel (Available in Titanium or Stainless Steel finish)
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Weight: 55.4 lbs (Stock: 74.7 lbs)
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Sound Level: 95.7 dB @ 4,500 RPM
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Fitment: Lexus RC-F (USC10) 2015–2022
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Engine: 2UR-GSE
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Body Style: 2-Door Coupe
 
Part Numbers:
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Stainless: 164KT201-SS / 164KT201-SSP
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Titanium: 164KT201 / 164KT201P
 
⚠️ California Proposition 65 Warning: Cancer & Reproductive Harm – www.p65warnings.ca.gov
Why Choose A’PEXi N1 Evolution Extreme
From street to circuit, A’PEXi continues to set the standard in Japanese performance exhausts. The N1 Evolution Extreme combines race-proven performance with daily drivability — the ideal choice for RC-F owners who demand both sound and sophistication.