APEXi N1-X Evolution Extreme Non-Resonated Midpipe - 2022+ Lexus IS500 - 144-KT13P
- 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-KT21 (Titanium Tips) or 164AKT21 (Stainless Steel Tips)
| Bolt-On | Yes |
|---|---|
| Part Number | |
| Year | 2022 |
| Make | Lexus |
| Model | IS500 |
| Body Style | 4-Door Sedan |
| Engine | 2UR-GSE |
| Chassis | USE30 |
| Exhaust Type | N1 Evolution Extreme Muffler (N1-X) |
| Piping Diameter | 65mm. x 2 - 50mm. x 4 |
| Pieces | 3 |
| Piping Material | SUS304 Stainless Steel |
| System Weight | Mid-pipe only 25.90 lbs. (Stock- 35.50 lbs.) 7.6 lbs. lighter than OEM |
| Special Notes | Sound Level (with part # 164-KT21 or 164AKT21): Resonated- 93.1 dB, Non-Resonated- 95.7 dB @ 4,500 RPM. Modular design-> Mid-pipe and Rear Section can be interchanged with factory exhaust components. |
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WARNING: California Prop 65 Cancer & Reproductive Harm www.p65warnings.ca.gov |
APEXi N1-X Evolution Extreme Non-Resonated Midpipe - 2022+ Lexus IS500 - 144-KT13P aftermarket automotive part
Designed for the 2022+ Lexus IS500 (USE30 / 2UR-GSE), this non-resonated midpipe is part of the N1-X Evolution Extreme exhaust system layout. It runs between the catalytic converter area and the rear muffler section, using parallel mid-pipes with an H-style design intended to help equalize pressure between both exhaust pipes.
SKU: APEX-144-KT13P
Built from TIG-welded SUS304 stainless steel, this midpipe supports the N1-X Evolution Extreme modular approach, allowing the mid-pipe section to be interchangeable with factory OEM exhaust components. It is compatible with the N1-X Evolution Extreme rear section: 164-KT21 (Titanium Tips) or 164AKT21 (Stainless Steel Tips).
Key Benefits
- Bolt-on midpipe fitment for the 2022+ Lexus IS500 application.
- TIG-welded SUS304 stainless steel construction focused on long-term exhaust durability.
- Parallel mid-pipes support exhaust efficiency between catalytic converter and rear section.
- H-style piping design chosen to equalize pressure across both exhaust paths.
- Patented Megaphone piping structure targets torque and throttle response across powerband.
- Modular design allows interchange with factory OEM mid-pipe and rear components.
- Works with N1-X rear sections 164-KT21 or 164AKT21 for system pairing.
Specifications
- Vehicle fitment: 2022+ Lexus IS500, 4-door sedan
- Engine / Chassis: 2UR-GSE / USE30
- Exhaust type: N1 Evolution Extreme Muffler (N1-X)
- Piping diameter: 65mm x 2 to 50mm x 4
- Material: SUS304 stainless steel
- Pieces: 3
- Weight: 25.90 lbs (stock 35.50 lbs), 7.6 lbs lighter than OEM
- Sound level with 164-KT21 or 164AKT21: non-resonated 95.7 dB @ 4,500 RPM
This midpipe is intended to integrate cleanly with the N1-X Evolution Extreme system design while keeping fitment specific to the IS500 platform listed above. For sound output reference, the provided dB figure applies when paired with the compatible N1-X rear section part numbers noted.
| Brand | APEXi |
|---|