The BORLA® Cat-Back™ Exhaust System for the Subaru BRZ and Toyota GR86 (2.4L engine) is engineered to deliver peak performance, durability, and sound quality. This 3" single-exit system incorporates BORLA’s innovative Polyphonic Harmonizer technology, which uses patented harmonizing pipes of varying diameters and lengths to produce a clean, rich, and full-bodied ATAK® exhaust note—all without cabin drone.

Exiting on the passenger side, the system features an extended Polyphonic Harmonizer muffler core that flows through a 4.5" brushed T-304 stainless steel tip with a laser-cut BORLA® logo for a refined, performance-oriented look. Precision laser-welded muffler end caps complete the design with a clean, factory-quality finish.

Built from premium T-304 austenitic stainless steel, this system offers superior corrosion resistance and longevity compared to lower-grade materials. Mandrel-bent tubing ensures unrestricted exhaust flow, while CNC precision manufacturing guarantees an exact fit.

Experience the distinctive BORLA® Sound of Power, enhanced throttle response, and improved exhaust velocity — all engineered for maximum performance and excitement.

Installation Instructions