A'PEXi - N1 Evo Extreme (Midpipe) - 2015+ Lexus RC300 / RC350

APEXi SKU: 144-KT10


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Drivetrain: AWD

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N1-X Evolution Extreme Midpipe
2015+ Lexus RC350 AWD/RWD
2015+ Lexus RC300 (2GR-FSE | V6) AWD/RWD

The N1 Evolution Extreme is based on the proven performance basics of the N1 muffler. Optimum exhaust efficiency is achieved through the mid-pipes running parallel between the catalytic converter and rear muffler section. The H-style piping design was opted to equalize the pressure in both exhaust pipes. Our unique modular design allow the mid-pipes to be interchangeable with the factory OEM exhaust system components along with the rear section which is sold separately.


  • 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
  • Compatible with the N1-X Evolution Extreme rear section part number 164-KT13
Bolt-On Yes
Part Number 144-KT04, 144-KT10
Year 2015~Present
Make Lexus
Model - AWD : 144-KT10
- RWD : 144-KT04
Body Style 2-Door Coupe
Engine 2GR-FSE
Chassis GSC10
Exhaust Type N1 Evolution Extreme Muffler (N1-X)
Piping Diameter 60.5mm. x 2 -> 50mm. x 4
Pieces 3
Piping Material SUS304 Stainless Steel
System Weight Mid-pipe only 26.20 lbs. (Stock- 32.20 lbs.) 6.0 lbs. lighter than OEM
Special Notes Sound Level (with part # 164-KT13): 92.2 dB @ 4,500 RPM. Modular design-> Mid-pipe and Rear Section can be interchanged with factory exhaust components.
WARNING: California Prop 65
Cancer & Reproductive Harm