N1-X Evolution Extreme Catback Exhaust - 2013+ Lexus GS350 AWD - 164KT211

Special Price $2,564.05 Regular Price $2,699.00
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N1-X Evolution Extreme Muffler Catback Exhaust (Titanium Tip) 
2013+ Lexus GS350 AWD

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 164KT207
Year 2013, 2014, 2015, 2016
Make Lexus
Model GS350
Body Style 4-Door Sedan
Engine 2UR-FSE
Chassis GRL10
Exhaust Type N1 Evolution Extreme Muffler (N1-X)
Piping Diameter 60.5mm. x 2
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 60.8 lbs. (Includes Full Exhaust System, gaskets and hardware pack) (Stock- 68.6 lbs.)
Special Notes Sound Level: 91.8 dB @ 4,500 RPM. Modular design->Mid-pipe and Rear Section can be interchanged with factory exhaust components.
NOTE: ***Requires Aftermarket Rear Bumper Lip Spoiler for fitment compatibility***
WARNING: California Prop 65
Cancer & Reproductive Harm 
More Information
Brand APEXi
Model Universal