APEXi N1-X Evolution Extreme Resonated Midpipe - 2022+ Lexus IS500 - 144-KT13
- 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 Resonated Midpipe - 2022+ Lexus IS500 - 144-KT13 performance upgrade part
Designed for the 2022+ Lexus IS500 (USE30 / 2UR-GSE), this resonated midpipe connects between the catalytic converter area and the rear muffler section as part of the N1 Evolution Extreme (N1-X) exhaust layout. Its parallel mid-pipe routing and H-style piping are intended to equalize pressure between both exhaust pipes.
SKU: APEX-144-KT13. Built from TIG-welded SUS304 stainless steel, the modular design allows the mid-pipe to be interchangeable with select factory exhaust components and the N1-X rear section (sold separately).
Key Benefits
- Resonated midpipe configuration tailored for 2022+ Lexus IS500 fitment.
- TIG-welded SUS304 stainless steel construction for durable, high-quality exhaust piping.
- Parallel mid-pipe routing between catalytic converter and rear muffler section.
- H-style piping design selected to equalize pressure between both exhaust pipes.
- Patented Megaphone piping structure supports torque and throttle response across powerband.
- Megaphone design promotes swirling exhaust gas flow with long-proven results.
- Compatible with N1-X Evolution Extreme rear section 164-KT21 or 164AKT21.
Specifications
- Bolt-On: Yes
- Part Number: 144-KT13 (Resonated); 144-KT13P (Non-Resonated)
- Year: 2022
- Make/Model: Lexus IS500
- Body Style: 4-Door Sedan
- Engine/Chassis: 2UR-GSE / 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
- Special Notes: Sound level with 164-KT21 or 164AKT21: Resonated 93.1 dB, Non-Resonated 95.7 dB @ 4,500 RPM; modular design allows interchange with factory exhaust components
- WARNING: California Prop 65 — Cancer & Reproductive Harm — www.p65warnings.ca.gov
This resonated midpipe is a focused N1-X system component for the IS500, combining a modular, bolt-on layout with SUS304 stainless construction and a pressure-equalizing H-style design. When paired with the specified rear section, the listed sound levels provide a clear reference point for system configuration.
| Brand | APEXi |
|---|