N1-X Evolution Extreme Midpipe Kit (Resonated)
2014+ Lexus IS250/IS350 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.
PRODUCT FEATURES:
- 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 power-band. 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 (2014-2016), and 164-KT13 (2017-2020).
| Bolt-On | Yes |
|---|---|
| Part Number | 144-KT02 (RWD) 144-KT09 (AWD) |
| Year | 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 |
| Make | Lexus |
| Model | IS250, IS300 (V6-AWD), IS350 |
| Body Style | 4-Door Sedan |
| Engine | 2GR-FSE, 2GR-FKS |
| Chassis | GSE31 |
| Exhaust Type | N1 Evolution Extreme Muffler (N1-X) |
| Piping Diameter | 65mm. x 2 |
| Pieces | 3 |
| Piping Material | SUS304 Stainless Steel |
| System Weight | Mid-pipe only 27.67 lbs. (Stock- 32.52 lbs.) 4.85 lbs. lighter than OEM |
| Special Notes | Sound Level (with part # 164-KT02): 87.0 dB @ 4,500 RPM. Modular design-> Mid-pipe and Rear Section can be interchanged with factory exhaust components. |
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Gasket Replacement |
- Front Section (Header to Midpipe) x2 - P106 x D66.5: 3901-0700 - Mid Section (Center of the Midpipe Kit) x2 - P97 x D66.5 : 3901-1660 - Rear Section (Connecting to Rear Axleback) : Factory OE Donut Gasket (Lexus OE Factory product) |
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WARNING: California Prop 65 Cancer & Reproductive Harm www.p65warnings.ca.gov |