Borla's cat-back exhaust system is built for the Toyota 4Runner with the 4.0L V6. It uses Borla's patented straight-through, multi-core technology to increase exhaust velocity and free hidden horsepower while delivering the distinctive Borla Sound of Power. Because it installs behind the factory catalytic converters, the system is 50-state emissions legal. Each system is handmade in the USA from premium T-304 austenitic stainless steel with ultra-smooth mandrel-bent piping for maximum flow and an accurate fit, and is backed by Borla's Million-Mile Warranty.
Specifications:
- System type: cat-back exhaust system
- Engine: 4.0L V6
- Material: T-304 austenitic stainless steel
- Construction: mandrel-bent, fully welded piping
- Emissions: 50-state emissions legal
- Made in the USA
- Part number: 140379
Vehicle Applications:
- 2010 Toyota 4Runner
- 2011 Toyota 4Runner
- 2012 Toyota 4Runner
- 2013 Toyota 4Runner
- 2014 Toyota 4Runner
- 2015 Toyota 4Runner
- 2016 Toyota 4Runner
- 2017 Toyota 4Runner
- 2018 Toyota 4Runner
- 2019 Toyota 4Runner
- 2020 Toyota 4Runner
- 2021 Toyota 4Runner
- 2022 Toyota 4Runner
- 2023 Toyota 4Runner
- 2024 Toyota 4Runner
FAQ
Which vehicles does this Borla cat-back fit?
It fits the 2010-2024 Toyota 4Runner with the 4.0L V6, per Borla's application listing. Confirm your model year and engine before ordering.
Is this cat-back 50-state emissions legal?
Yes. It mounts behind the factory catalytic converters, so it is 50-state emissions legal and does not affect emissions compliance.
What is the system made of?
It is handmade in the USA from T-304 austenitic stainless steel with mandrel-bent piping, and it is backed by Borla's Million-Mile Warranty.
What does a Borla cat-back do for performance?
Borla's patented straight-through, multi-core design increases exhaust flow and velocity to free hidden horsepower while producing the signature Borla Sound of Power.
