PLM Axle Back Exhaust 2022+ BRZ GR86: Sound & Fitment FAQ
By Aftermarket Car Parts -Private Label Mfg | Published: 2026-10-30
Category: How-to Guides
Straight answers on the PLM 3-inch track pipe for the 2022+ BRZ and GR86: sound, drone, fitment, tip options, and whether a muffler delete is right for your car.
Quick answer
The PLM Axle Back Exhaust 3" Track Pipe is a direct-fit muffler delete for the 2022+ BRZ and GR86 that saves weight and raises exhaust sound. Buy it if you want a louder, lighter axle back and accept more cabin noise; skip it if you need a quiet daily driver.
Why a track pipe changes the ownership experience
A track pipe replaces the factory rear muffler with straight 3-inch piping. That removes a large baffled chamber, which is where most of the weight and sound damping live. The result is a lighter rear section and a more direct exhaust note, but also less suppression of highway drone and cold-start volume.
Because the PLM unit is an axle back, it only affects the rear section. The rest of the factory exhaust, including any resonators or cats upstream, stays in place. That limits how much total sound changes compared with a full system, and it means fitment depends on the factory axle-back flange and hanger positions.
BRZ/GR86 track pipe FAQ
- Will the PLM track pipe fit my 2022+ BRZ or GR86?
- PLM lists fitment for the 2022+ Subaru BRZ and 2022+ Toyota GR86. It is an axle-back design, so it mounts to the factory rear exhaust section. Check that your car still has the original axle-back flange and hangers; altered or aftermarket rear sections may not match. Confirm your model year and that the rear exhaust is stock before ordering.
- How loud is the axle back sound?
- Because it deletes the muffler, expect a noticeably louder cold start and more volume under acceleration. At steady highway speed, the 3-inch piping can produce drone inside the cabin. The exact level depends on your car's other exhaust parts and sound deadening, so listen to clips with stock upstream components if possible. Plan for more interior noise at cruising speed, not just at idle.
- Does the track pipe cause drone on the highway?
- Muffler-delete systems commonly drone at certain RPM ranges, and the PLM track pipe is no exception. The single-wall 4-inch tip and straight-through design do not include a resonator or Helmholtz chamber to cancel specific frequencies. If you do long highway commutes, consider keeping the stock axle back or adding sound treatment. Test-drive a similar muffler delete before committing if drone is a concern.
- What tip options are available?
- The PLM track pipe comes with a single 4-inch single-wall tip in your choice of polished or blue finish. Tip color is cosmetic and does not change sound or fitment. Choose the finish that matches your wheel or badge accents.
- Is a muffler delete legal for street use?
- Legality varies by state and country. Many areas have noise ordinances or inspection rules that a muffler delete may not pass. PLM does not claim street legality, so check local regulations before installing. Verify local noise and inspection laws before purchase.
- What weight savings should I expect?
- PLM describes the track pipe as maximizing weight savings versus the factory muffler, but does not publish a specific weight figure. The actual savings depend on the stock system you remove. Weigh both parts if you need an exact number for competition rules. Weigh the factory part and the PLM unit yourself for class compliance.
Product facts
- PLM Axle Back Exhaust 3" Track Pipe 2022+ BRZ GR86: 3-inch outer-diameter piping with a single 4-inch single-wall tip, available in polished or blue finish. The larger piping and single tip define the look and sound character, while the color option lets you match the rear end without changing performance.
PLM Axle Back Exhaust 3" Track Pipe 2022+ BRZ GR86 - PLM Axle Back Exhaust 3" Track Pipe 2022+ BRZ GR86: Stainless steel construction and listed fitment for 2022+ Subaru BRZ and 2022+ Toyota GR86. Stainless steel resists corrosion in daily use, and the explicit fitment list means you can check your model year before ordering.
