BOSO Burnt Axleback for GR86/BRZ 2022+: Fit, Sound & Care FAQ
By REMARK Exhaust | Published: 2026-11-03
Category: Product Reviews
Straight answers on fitment, sound, burnt-tip care, and installation for the BOSO Edition Burnt Stainless Axleback on 2022+ Toyota GR86 and Subaru BRZ.
Quick answer
The BOSO Edition Burnt Stainless Axleback is a direct-fit, used open-box axleback for the 2022+ Toyota GR86 and Subaru BRZ. Expect a louder, more aggressive tone than stock and a burnt-tip finish that needs simple care to stay looking good.
What the open-box condition means for you
This axleback is listed as a used open-box display item that has never been installed on a vehicle, but scratches and blemishes are to be anticipated. That means you get the BOSO Edition look and sound at a lower price, but you should inspect the finish on arrival and set realistic expectations about cosmetic imperfections.
Because it is a used part, the REMARK Limited Warranty eligibility may differ from a new unit. Check the current warranty terms before ordering if long-term coverage matters to you.
Why the burnt stainless finish is not a set-and-forget coating
Burnt stainless tips are a surface treatment, not a permanent shield. Road grime, salt, and heat cycles will gradually dull the color if you never clean them. A quick wash with pH-neutral soap and a soft cloth after exposure keeps the burnt effect more consistent.
Avoid abrasive polishes or harsh wheel cleaners on the tip; they can strip the finish and leave a patchy look. If you drive in winter conditions, rinse the tip and rear bumper area more often to limit salt buildup.
BOSO Edition Axleback: common questions answered
- Will this axleback fit my 2022+ GR86 or BRZ without modification?
- Yes. The listing specifies application for the 2022+ Toyota GR86 and Subaru BRZ. It is an axleback design, so it replaces the rear muffler section and uses the factory mounting points. No cutting or welding is mentioned in the supplied facts, but always test-fit before fully tightening bolts. Check the part number RO-TTZ8-SL on the unit you receive to confirm it matches the listing.
- How does the BOSO Edition sound compared to the stock axleback?
- The supplied catalog does not include a decibel rating or a detailed sound description. As an axleback, it typically removes some muffling compared to stock, so expect a louder, deeper tone. For a precise sound expectation, look for owner clips of this exact part on a 2022+ GR86 or BRZ, since sound is subjective and depends on other exhaust components. If you need a quiet daily driver, listen to clips before buying; axlebacks are generally more noticeable than stock.
- What is included in the box for installation?
- The listing states gaskets and hardware are included. You will reuse the factory hangers and bolts unless they are damaged. Basic hand tools are usually enough, but penetrating oil on the original bolts can save time on older cars. Inspect the included gaskets before starting; if they are crushed or torn, source a replacement.
- How do I care for the burnt stainless tip?
- Clean the tip with mild soap and water when the exhaust is cool. Avoid abrasive pads, acidic wheel cleaners, and polishes that cut metal. After winter driving, rinse the tip and surrounding bumper area to remove salt. Small scratches are already anticipated on this used item, so focus on preventing new damage rather than restoring a perfect finish. Do not use the same harsh cleaner you might use on wheels; keep it pH-neutral.
- Can I install this axleback myself?
- Axleback installs are generally DIY-friendly: raise the car safely, unbolt the factory rear section, transfer hangers, and bolt up the new one with the included gaskets and hardware. Check for clearance around the bumper and diffuser before tightening everything. If you are not comfortable working under a car, have a shop handle it. Recheck bolt tightness after the first few drives, as heat cycles can loosen new connections.
Product facts
- Axleback (BOSO Edition) Burnt Stainless - Toyota GR86 / Subaru BRZ 2022+: Application: 2022+ Toyota GR86 / Subaru BRZ (Part Number RO-TTZ8-SL). Confirms this axleback is designed for the current-generation twins, so you are not adapting a part from an older chassis.
Axleback (BOSO Edition) Burnt Stainless - Toyota GR86 / Subaru BRZ 2022+ - Axleback (BOSO Edition) Burnt Stainless - Toyota GR86 / Subaru BRZ 2022+: Gaskets and hardware are included. You do not need to source separate gaskets for a basic install, which simplifies the job.
- Axleback (BOSO Edition) Burnt Stainless - Toyota GR86 / Subaru BRZ 2022+: Open box: yes; display item: yes; installed on vehicle: never. It has been handled as a display piece but not road-tested, so inspect for cosmetic flaws while knowing the mounting surfaces should be fresh.
- Axleback (BOSO Edition) Burnt Stainless - Toyota GR86 / Subaru BRZ 2022+: Condition rating: 4.8/5. Signals the part is in strong overall condition, though the rating is not a guarantee against minor scratches noted in the listing.
