HKS Legamax Sports Cat Back - 2013-2022 Scion FR-S / Subaru BRZ / Toyota GR86

Legamax Sports Cat-Back Exhaust for the 2013-2022 FR-S, BRZ, and GR86

The HKS Legamax Sports Cat-Back Exhaust for the 2013-2022 Scion FR-S, Subaru BRZ, and Toyota GR86 is HKS's Legamax-tuned cat-back option for the FA20 platform. The Legamax muffler design is characterized by a deeper, more refined exhaust note compared to the Super Turbo. It produces more volume than stock without the raspy, sharp character of a race-derived exhaust design. For FR-S and BRZ owners who want a genuine exhaust upgrade with daily-driving manners, the Legamax Sports is the right call.

Specs & Highlights

• Cat-back exhaust system
• Legamax Sports muffler tuning
• Deep, refined exhaust note
• More volume than stock, less aggressive than Super Turbo
• Stainless steel construction
• Fitment: 2013-2022 Scion FR-S / Subaru BRZ / Toyota GR86

50.8mm Pipe, 8.4 kg, 90 dB(A) at WOT

The Legamax Sports uses 50.8mm (2 inch) main pipe and a single 110mm (4.3 inch) tip, same pipe diameter as the Hi-Power SPEC-L2 but with a different muffler internal structure. Sound level is approximately 90 dB(A) at 1m at WOT, approximately 3 dB quieter than the SPEC-L2. The Legamax muffler core uses a straight-through perforated tube wrapped in absorption packing, which produces the softer, more rounded sound character that distinguishes the Legamax from the resonance-tuned Hi-Power design.

Straight-Through Absorption Muffler Design

The Legamax Sports positions itself between the stock exhaust and the more aggressive HKS options. It is not trying to make the FA20 sound like a car it is not. It improves on what the FA20 naturally does by removing the OEM suppression and letting the engine's character come through more clearly. At highway speeds the exhaust note is present but not intrusive.

Deep Sound Daily, Not Aggressive

Single exit configuration. Stainless steel construction with HKS tip finish. Bolt-on installation using OEM flange connection and hangers. The Legamax Sports covers the full FA20 platform run from 2013 through 2022 including the first-generation GR86.

The FT Breakdown

The Legamax Sports is the exhaust for FR-S, BRZ, and first-gen GR86 owners who want a real upgrade without going aggressive. It sounds better than stock in a way that is noticeable without being obnoxious. For a car you drive every day, that balance matters. The 50.8mm pipe at 90 dB(A) is the Legamax Sports finding the optimal point between exhaust sound presence and daily usability for the FA20. Three decibels below the SPEC-L2 may not sound like much, but that reduction is approximately half the perceived loudness according to human psychoacoustics — the Legamax Sports is not simply quieter, it is genuinely comfortable at highway speeds in a way the Hi-Power series is not.