GR86 and BRZ BOSO Edition Axleback: Sound and Fit Myths

By REMARK Exhaust | Published: 2026-11-05

Category: 商品レビュー

Separate fact from rumor about the GR86/BRZ BOSO Edition axleback. We tackle sound, fitment, and open-box condition so you can decide with confidence.

Quick answer

The BOSO Edition axleback for the 2022+ GR86/BRZ is a direct-fit, open-box option that delivers a distinct sound without the guesswork—but you need to separate hype from reality. Here are the facts.

Why open-box condition doesn’t mean compromised performance

The BOSO Edition axleback we list is rated 4.9/5 Like New and has never been installed on a vehicle. Light surface imperfections from handling are cosmetic and don’t affect fit or function. You still get the full REMARK Limited Warranty, and gaskets and hardware are included—so you’re not hunting for extra parts.

Fitment: what ‘direct fit’ really means for your GR86/BRZ

This axleback is specifically designed for the 2022+ Toyota GR86 and Subaru BRZ. It’s not a universal muffler—it bolts to the factory flange location. Because gaskets and hardware are included, you won’t need to source them separately, but professional installation is still recommended to ensure proper alignment.

Myths vs. facts: BOSO Edition axleback

Myth: Open-box means damaged or incomplete.: Verdict: False. The unit is rated Like New, never installed, and includes all gaskets and hardware. Light surface imperfections are cosmetic. Inspect the unit upon arrival and document any cosmetic flaws before installation.
Myth: Any axleback for the GR86/BRZ will fit perfectly.: Verdict: False. This axleback is specifically listed for 2022+ GR86/BRZ; other models may require modification. Verify your model year and chassis before ordering.
Myth: BOSO Edition is just a louder muffler with no real difference.: Verdict: Misleading. While we don’t claim specific sound levels, the BOSO Edition is a distinct part number (RO-TTZ8-SL) with its own design—not a generic replacement. Listen to sound clips and read owner reviews to set realistic expectations.

Product facts

Axleback (BOSO Edition) - Toyota GR86 / Subaru BRZ [2022+]: Application: 2022+ Toyota GR86 / Subaru BRZ; Part Number: RO-TTZ8-SL. Confirms this axleback is engineered for your chassis, so you avoid universal-fit compromises.
Axleback (BOSO Edition) - Toyota GR86 / Subaru BRZ [2022+]
Axleback (BOSO Edition) - Toyota GR86 / Subaru BRZ [2022+]: Condition Rating: 4.9/5 Like New; Open Box: Yes; Installed on Vehicle: Never. You get essentially a new unit at a lower price, with no wear from previous use.
Axleback (BOSO Edition) - Toyota GR86 / Subaru BRZ [2022+]: Gaskets and Hardware Included; Free Ground Shipping to lower 48 States. Everything you need for installation is in the box, and shipping is free within the contiguous US.