The Borla S-Type axle-back exhaust system for the 2015-2025 Lexus RC F and 2022-2025 Lexus IS 500 5.0L V8 is a true dual, 2.25 inch diameter design that delivers the classic S-Type sound with no drone inside the vehicle. Each muffler assembly finishes with dual 4 inch round black chrome T-304 stainless steel tips. Borla recommends cleaning the black chrome tips with hot water and a microfiber cloth rather than stainless steel polish. Optional mid section 60738, designed to work only with Borla axle-back systems 11981 and 11981BC, can be added to create a cat-back system; installation requires cutting the stock exhaust mid section and welding inlet pipes to the rear of the catalytic converters, and its merge X-pipe increases overall volume while keeping the system tone. Borla cat-back and axle-back systems use patented straight-through, multi-core technology with ultra-smooth mandrel bends and CNC manufacturing for increased exhaust velocity, added power, and an accurate bolt-on fit. Built from premium all-welded T-304 stainless steel, superior to T-400 series materials such as 409, this axle-back mounts behind the factory catalytic converters and is 50-state emissions legal. Every Borla exhaust is handmade in the USA and backed by the Borla Million-Mile Warranty.
Specifications:
- System type: S-Type axle-back, true dual
- Sound level: S-Type, no cabin drone
- Material: T-304 stainless steel
- Construction: all welded
- Technology: patented straight-through, multi-core
- Tubing diameter: 2.25 inch
- Tips: dual 4 inch round black chrome T-304 stainless steel per muffler
- Optional mid section 60738 converts the system to a cat-back
- Emissions: 50-state emissions legal
- Made in the USA
- Part number: 11981BC
Vehicle Applications:
- 2022 Lexus IS 500
- 2023 Lexus IS 500
- 2024 Lexus IS 500
- 2025 Lexus IS 500
- 2015 Lexus RC F
- 2016 Lexus RC F
- 2017 Lexus RC F
- 2018 Lexus RC F
- 2019 Lexus RC F
- 2020 Lexus RC F
- 2021 Lexus RC F
- 2022 Lexus RC F
- 2023 Lexus RC F
- 2024 Lexus RC F
- 2025 Lexus RC F
FAQ
What vehicles does the Borla 11981BC axle-back exhaust fit?
It fits the 2015-2025 Lexus RC F and the 2022-2025 Lexus IS 500 equipped with the 5.0L V8.
Is the Borla 11981BC exhaust street legal?
Yes. It is an axle-back system that mounts behind the factory catalytic converters and is 50-state emissions legal.
Can this axle-back be converted to a cat-back?
Yes. Optional mid section 60738 works only with Borla systems 11981 and 11981BC and creates a cat-back; its installation requires cutting the stock mid section and welding inlet pipes to the rear of the catalytic converters.
How should the black chrome tips be cleaned?
Clean the black chrome tips with hot water and a microfiber cloth. Stainless steel polish is not recommended on black chrome tips.
