HKS LEGAMAX Sports Cat Back Exhaust - 2022-2024 Toyota GR86 / Subaru BRZ
Legamax Sports Cat-Back Exhaust for the 2022-2024 GR86 and BRZ

The HKS Legamax Sports Cat-Back Exhaust for the 2022-2024 Toyota GR86 and Subaru BRZ brings HKS's Legamax muffler tuning to the FA24-powered second generation platform. The Legamax Sports character is refined compared to the Hi-Power series. Deeper in note, less aggressive in volume, and appropriate for owners who want the exhaust upgrade without a loud, track-oriented sound signature. For the FA24, which produces more torque and a slightly different pulse character than the FA20, the Legamax tuning works well with the engine's improved low-end delivery.
Specs & Highlights
- Cat-back exhaust system
- Legamax Sports muffler tuning for FA24
- Deep, refined exhaust note
- Single exit configuration
- Stainless steel construction
- Fitment: 2022-2024 Toyota GR86 / Subaru BRZ
60.5mm Pipe, 8.2 kg, 89-90 dB(A) at WOT
The AF019 uses a 60.5mm (2.375 inch) main pipe and a single 110mm (4.3 inch) tip for both GR86 and BRZ applications. System weight is approximately 8.2 kg. Sound level is approximately 89–90 dB(A) at 1m at WOT, noticeably quieter than the Hi-Power series and appropriate for owners who prioritize daily usability. The Legamax muffler internals use a multi-chamber absorption design versus the Hi-Power's resonance-tuned chamber approach, which accounts for the character difference between the two product families.
Legamax Multi-Chamber Absorption for the FA24
The FA24's additional displacement and torque give it a richer natural sound than the FA20, and the Legamax Sports tuning respects that by adding presence rather than replacing the engine's character. The result is an exhaust that sounds like a better version of what came out of the factory rather than an aftermarket addition.

Quietest Cat-Back Option in the HKS 2022+ Lineup
The Legamax Sports for the 2022+ platform is the straightforward, daily-drivable exhaust choice in the HKS lineup for the second-generation GR86 and BRZ. It installs as a direct cat-back replacement using OEM flanges and hangers.
The FT Breakdown
The Legamax Sports is the exhaust for GR86 and BRZ owners who want the upgrade without committing to an aggressive sound level. It makes the FA24 sound better every day, which is the standard a good street exhaust should meet. At 89–90 dB(A) the Legamax Sports for the 2022+ platform is the quietest cat-back option in HKS's GR86 and BRZ lineup — quieter even than the standard Legamax AT040 for the FA20 when measured on the FA24. The FA24's larger displacement and greater exhaust pulse energy means HKS had to work harder to achieve the same refined character on the second-generation car, and the muffler engineering reflects that.