The Borla cat-back exhaust system upgrades the 2012-2018 Jeep Wrangler JK with the 3.6L V6, finishing with a single square rolled angle-cut tip in a black chrome finish on T-304 stainless steel. Borla cat-back systems use patented straight-through, multi-core technology to free hidden horsepower, increasing exhaust velocity for added power, driving excitement, efficiency, and the distinctive Borla Sound of Power. Each system is built from premium T-304 austenitic stainless steel, with ultra-smooth mandrel bends for maximum flow and CNC-manufactured parts for an accurate fit, and is backed by the Borla Million-Mile Warranty. This system mounts behind the factory catalytic converter and is 50-state emissions legal. Borla exhaust is handmade in the USA.
Specifications:
- System type: Cat-back exhaust system
- Material: T-304 austenitic stainless steel
- Construction: fully welded, mandrel-bent, straight-through multi-core mufflers
- Tubing diameter: 2.5 in
- Tip: single square, rolled angle-cut, black chrome on T-304 stainless (approx. 3.5 in x 3.28 in)
- Tip care: do not use stainless steel polish on the black chrome tip; clean with hot water and a microfiber cloth
- Emissions: 50-state emissions legal
- Warranty: Million-Mile Warranty
- Made in the USA
- Part number: 140459BC
Vehicle Applications:
- 2012 Jeep Wrangler
- 2013 Jeep Wrangler
- 2014 Jeep Wrangler
- 2015 Jeep Wrangler
- 2016 Jeep Wrangler
- 2017 Jeep Wrangler
- 2018 Jeep Wrangler JK
FAQ
What vehicles does the Borla 140459BC cat-back fit?
It fits 2012-2018 Jeep Wrangler JK models with the 3.6L V6, including two-door and four-door Unlimited configurations across Sport, Sport S, Sahara, and Rubicon trims.
Is the Borla 140459BC cat-back legal in all 50 states?
Yes. It mounts behind the factory catalytic converter and is 50-state emissions legal.
How do I care for the black chrome tip?
Do not use Borla stainless steel polish on the black chrome tip. Clean it with hot water and a microfiber cloth to protect the finish.
What is the system made from?
It is built from premium T-304 austenitic stainless steel with mandrel-bent, straight-through construction for maximum flow and durability.
Is it made in the USA?
Yes. Borla exhaust systems are handmade in the USA and backed by a Million-Mile Warranty.

