A'PEXi - N1 Evo Extreme (Midpipe) - 2016+ Lexus IS200t / IS300 [Turbo Model]

APEXi SKU: 144-KT03P


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N1-X Evolution Extreme Midpipe (Non-Resonated)
2016-2017 Lexus IS200t
2018+ Lexus IS300 (Turbo)

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-KT02
Bolt-On Yes
Part Number 144-KT03P
Year 2016, 2017, 2018, 2019, 2020, 2021, 2022
Make Lexus
Model 2016-2017 IS200t
2018+ IS300 (Turbo)
Body Style 4-Door Sedan
Engine 8AR-FTS
Chassis ASE30
Exhaust Type N1 Evolution Extreme Muffler (N1-X)
Piping Diameter 60.5mm. x 2
Pieces 3
Piping Material SUS304 Stainless Steel
System Weight Mid-pipe only 18.16 lbs. (Stock- xx.xx lbs.) x.x lbs. lighter than OEM
Sound Level Sound Level (with part # 164-KT02): xx.x dB @ 4,500 RPM.
Special Notes Modular design-> Mid-pipe and Rear Section can be interchanged with factory exhaust components.
WARNING: California Prop 65
Cancer & Reproductive Harm