A'PEXi - N1 Evo Extreme (Catback) - 2017+ Lexus IS300 / IS350

APEXi SKU: 164KT215


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N1-X Evolution Extreme Muffler Catback Exhaust (Resonated)
2017+ Lexus IS300 / IS350 AWD/RWD

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 AWD: 164KT215
RWD: 164KT213
Year 2017, 2018, 2019, 2020
Make Lexus
Model IS300 AWD, IS350 AWD
Body Style 4-Door Sedan
Engine 2GR-FSE
Chassis ASC10
Exhaust Type N1 Evolution Extreme Muffler (N1-X)
Piping Diameter 60.5mm. x 2 -> 50mm. x 4
Tip Diameter 93mm. x 4
Pieces 5
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 58.96 lbs. (Includes Full Exhaust System, gaskets and hardware pack) (Stock- 65.9 lbs.)
Sound Level Sound Level: 90.1 dB @ 4,500 RPM.
Special Notes Modular design->Midpipe and Rear Section can be interchanged with factory exhaust components. NOTE: Do Not Use metal polish, cleaners, solvents, etc. containing abrasive chemicals/substances when cleaning titanium tip
WARNING: California Prop 65
Cancer & Reproductive Harm