Apexi offers high quality products at completitive prices. Manufactured using cutting-edge technology and vigorous testing, Apexi performance products are what most enthusiasts and racers demand. Most Apexi performance proucts are made in Japan.
N1-X Evolution Extreme Muffler Axleback Exhaust (Titanium Tip) for 2013-2020 Lexus GS350 RWD/AWD.
The N1 Evolution Extreme is based on the proven performance basics of the N1 muffler which emphasizes optimum exhaust efficiency utilizing a straight-thru layout design. Equipped with an internal hybrid silencer uniting power and free flowing characteristics with effective functional sound resonance. A newly adopted muffler tip completes the tail end of the exhaust that serves both purposes of function and form.
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 powerband. This piping design allows for a swirling exhaust gas flow effect that has for years produced proven results.
***NOTE: Requires Aftermarket Rear Bumper Lip Spoiler for fitment compatibility or modification/trimming of OEM Factory Rear Lower Diffuser Panel***
APEXi N1 Evolution-X Exhaust, Lexus GS200t / GS350 2013-2020, Axleback with Titanium Tip
Pipe : 60.5mm x 2, Tip : 93mm x 4 Quad, NOT compatible with factory rear bumper lip spoiler, must use aftermarket rear lip spoiler
Installation Notes:
Professional installation is required.
Specifications:
| Bolt-On | Yes |
|---|---|
| Part Number |
|
| Year | 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 |
| Make | Lexus |
| Model | GS350 AWD, GS350 RWD |
| Body Style | 4-Door Sedan |
| Engine | 2GR-FSE |
| Chassis | GRL10, GRL11, GRL15 |
| Exhaust Type | N1 Evolution Extreme Muffler (N1-X) |
| Piping Diameter | 60.5mm. x 2 |
| Tip Diameter | 93mm. x 4 |
| Pieces | 2 |
| Exhaust Tip Style |
|
| Piping Material | SUS304 Stainless Steel |
| Muffler Material | SUS304 Stainless Steel |
| Muffler Tip Material |
|
| System Weight | 33.50 lbs. (Includes Full Exhaust System, gaskets and hardware pack) (Stock- 33.70 lbs.) |
| Sound Level | Sound Level: 89.7 dB @ 4,500 RPM. |
| Special Notes | Modular design-> Midpipe and Rear Section can be interchanged with factory exhaust components - NOTE: ***Requires Aftermarket Rear Bumper Lip Spoiler for fitment compatibility*** |
![]() |
WARNING: California Prop 65 Cancer & Reproductive Harm www.p65warnings.ca.gov |
Fitment & Application:
| Brand | Apexi Performance |
|---|---|
| Part Number | APX-164-KT07 |
| Shipping Method | UPS/FedEx/USPS Ground |
| California Prop 65 Warning |
|


This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or reproductive harm. For more information, visit https://www.p65warnings.ca.gov/