GReddy Evolution GT Cat-Back Exhaust – 2017–2020 Subaru BRZ | ZC6 | FA20 | Titanium Tip | 10118301

GReddy Evolution GT stainless cat-back exhaust for the 2017–2020 Subaru BRZ (ZC6, FA20). GReddy’s performance-tier cat-back line — a step above the Supreme SP in piping diameter, sound character, and tip specification. 70mm T304 stainless steel piping throughout, GReddy’s signature titanium burnt tip, and a performance-tuned muffler that delivers a clear, aggressive exhaust note across the FA20’s rev range. 41.3 lbs. Ships fast across Canada and the US.

Evolution GT vs Supreme SP — How They Differ

GReddy’s Evolution GT sits above the Supreme SP in their cat-back lineup. The differences are meaningful rather than cosmetic:

• Piping diameter — 70mm vs 60mm: The Evolution GT uses 70mm (approximately 2.76") main piping — 10mm larger than the Supreme SP’s 60mm. The larger bore reduces backpressure more aggressively in the upper RPM range, where the FA20’s naturally aspirated power delivery peaks between 5,500 and 7,500 RPM. The gain is most pronounced at high-RPM sustained pulls and on the track.
• Titanium tip vs stainless tip: The Evolution GT’s defining visual feature is GReddy’s titanium burnt tip. Titanium is lighter than stainless and develops a heat-discoloured blue/purple/gold iridescent finish from exhaust temperatures — the “burnt” appearance that is the signature of the Evolution GT line. The tip is genuine titanium, not a stainless tip with a blue coating.
• Sound character: The Evolution GT is louder and more assertive than the Supreme SP. The larger piping and Evolution GT muffler tuning produce a performance exhaust note that is clearly audible inside and outside the cabin at mid-to-high RPM. It is not a straight-pipe; the muffler provides attenuation at idle and low RPM. However, buyers who prioritise a quiet daily-driver character should consider the Supreme SP. The Evolution GT is the correct choice for track use, autocross, and owners who want the exhaust to be heard.

FA20 and the Evolution GT — Performance Context

The ZC6 BRZ’s FA20 is a high-revving naturally aspirated 2.0L flat-four producing approximately 200 hp at the crank in factory trim. The FA20’s power delivery is RPM-dependent — it builds progressively to a peak near 7,000 RPM. Exhaust system upgrades on the FA20:

• Power gains: A cat-back on a stock FA20 typically produces 5–12 whp depending on supporting mods and dyno conditions. The gain is concentrated in the mid-to-upper RPM range where reduced backpressure allows the FA20 to breathe more freely. Combining the Evolution GT with a cold air intake and appropriate tune maximises the benefit.
• Exhaust note at VTEC-equivalent RPM: The FA20 has a characteristic intake and exhaust note above approximately 6,000 RPM that the Evolution GT’s 70mm piping amplifies — producing the high-RPM sound character that defines the BRZ/86 driving experience for many owners.
• No tune required: A cat-back system retains the factory oxygen sensors and catalytic converter. No ECU tune is required following installation, though a tune that accounts for the improved exhaust flow will extract more power than a cat-back on an untuned FA20.

T304 Stainless Construction

All piping, muffler canister, and hardware are T304 stainless steel throughout. T304 stainless provides long-term corrosion resistance in year-round driving conditions including road salt exposure — relevant for Canadian owners running the BRZ as a three-season or occasional winter vehicle. The Evolution GT’s stainless construction will outlast mild steel aftermarket systems significantly.

ZC6 Facelift Fitment — 2017–2020

The Subaru BRZ ZC6 received a facelift update for the 2017 model year that included minor bumper and tail section revisions. The 10118301 is confirmed for the 2017–2020 ZC6 facelift. Pre-facelift ZC6 (2013–2016) and the second-generation ZD8 BRZ (2022+) are not covered:

• ZC6 2013–2016 (pre-facelift): Rear bumper aperture and exhaust exit geometry may differ from 2017+. Confirm with GReddy before ordering for pre-facelift applications.
• ZD8 2022+ (second generation): Completely different platform, exhaust routing, and rear bumper. Not compatible with 10118301.
• Toyota 86 / GT86 (ZN6, 2017–2020): The ZN6 Toyota 86/GT86 shares the FA20 engine and identical exhaust routing with the ZC6 BRZ. The 10118301 likely fits the ZN6 86/GT86 of the same years — confirm directly with GReddy for your specific year and market variant before ordering.

2017–2020 ZC6 BRZ only — not for ZD8 (2022+) or pre-facelift ZC6 (2013–2016, confirm). 70mm T304 stainless, titanium burnt tip. Cat-back — factory cat retained. More aggressive sound character than Supreme SP. No tune required.

Specifications

• Brand: GReddy (Trust Co., Ltd.)
• Part Number: 10118301
• Series: Evolution GT
• Type: Cat-back exhaust system
• Material: T304 stainless steel
• Main pipe diameter: 70mm (approximately 2.76")
• Tip: Titanium — burnt / heat-discoloured finish
• Application: 2017–2020 Subaru BRZ — ZC6 — FA20
• Catalytic converter: Retained (cat-back)
• Weight: 41.3 lbs