The COBB Tuning Accessport V3 is one of the most popular performance tuning and monitoring tools on the market. Originally built around Subaru platforms, COBB has since expanded the Accessport line to cover a wide range of makes and models. Since this site is focused on mounting solutions, we will skip the tuning details and get right to the question that performance drivers are actually searching for: how do you mount the thing properly?
Understanding the Dual-T Mounting Pattern
Before picking a mount, you need to understand what the Accessport V3 requires. The device ships with a magnetic cradle, and the back of that cradle has two T-shaped slots. This is known as the dual-T pattern. Any third-party mount you buy needs to have a dual-T adapter head to connect to that cradle. This is not a standard phone mount interface, so generic cradles will not work. You need mounts specifically designed or confirmed compatible with the dual-T slot system.
Mount Options at a Glance
| Mount | Best For | Location |
|---|---|---|
| Arkon GN068WD-SBH | Easy removal, vehicle-to-vehicle flexibility | Windshield or dash |
| Arkon GN057-SBH | Keeping the windshield clear | Air vent |
| Arkon GN088-L22-SBH | Larger vehicles, or keeping the dash clear | Seat rail or floor |
| Arkon GN010-SBH | Permanent low-profile placement | Dash or console |
The Included Adhesive Mount: What You Need to Know
The Accessport V3 ships with an adhesive mount pedestal in the box. For many drivers, this is enough. The mount has a 3M adhesive strip on the bottom that bonds to the dash or console surface. Getting it to stick and stay involves a few specific steps that are easy to skip but matter a lot in practice.
Install the mount when temperatures are moderate, not in extreme heat or cold. Clean the mounting surface thoroughly with an isopropyl alcohol solution before applying the adhesive. Once placed, leave the mount alone for a full 24 hours before attaching the cradle or device. Rushing that cure time is the most common reason these adhesive pedestals fail. Also choose a smooth, flat area because a curved or textured surface will significantly reduce adhesive performance.
Best Windshield Mount: Arkon GN068WD-SBH
The windshield is the most popular location for the Accessport V3, and for good reason. It keeps the screen in your line of sight without using up dash real estate. The Arkon GN068WD-SBH is a well-established dual-T compatible windshield and dash mount from a brand that has been in the mounting business since 1988.
The mount uses a one-touch lever to create a firm suction lock against the windshield. It also includes a 3M adhesive dash disk in the package, giving you the option to place it on the dash if your state restricts windshield mounting. The dual-T head connects directly to the back of the Accessport cradle. Once attached, the head pivots and rotates so you can dial in the ideal viewing angle for the driver’s seat. Arkon builds this from reinforced composite that holds up well in daily use. Reviewers specifically call out using it for the Accessport V3 and KTuner, confirming the fitment works in real-world conditions.
If you move the Accessport between vehicles, this is the mount to have. The suction cup releases cleanly, re-attaches quickly, and the included adhesive disk option means you have backup placement covered as well.
Best Vent Mount: Arkon GN057-SBH
If you prefer to keep the windshield completely clear, the Arkon GN057-SBH is the vent option to consider. This is a one-piece spring-loaded clip mount that secures to horizontal or vertical air vent louvers, with a support leg that braces against the bottom of the vent for added stability. That support leg is worth noting: most vent mounts rely on the clip alone, and under vibration from aggressive driving or rough roads, they can gradually work loose. The added contact point makes a real difference.
The dual-T head connects to the Accessport cradle the same way as the windshield options, and once attached the mount rotates 360 degrees for full viewing angle flexibility. The design works with horizontal vents on most cars, trucks, and SUVs. Cord catchers on either side help route the OBD-II cable cleanly. This is a good solution for drivers who track or push their vehicles and want the Accessport visible without obstructing the windshield view at all.
Best for Larger Vehicles: Arkon GN088-L22-SBH
The Arkon GN088-L22-SBH takes a completely different approach to mounting the Accessport V3. Instead of attaching to the windshield, vent, or dash, this mount bolts to the passenger seat rail using the existing seat track bolt. No drilling, no adhesive, no suction cup. The mount uses a 22-inch flexible aluminum gooseneck arm that you bend into position once and leave there, with a swivel ball at the top providing 360-degree adjustment.
This setup excels in large vehicles where dash and windshield placement can feel cramped or obstructed. The long arm brings the Accessport within easy reach of the driver without it being mounted directly in the sight line. A metal conduit brace is included to run the gooseneck against the center console and reduce vibration at speed. Optional floor brackets are also included if you prefer a floor mount over the seat rail, though that approach requires drilling and is best left to a professional installer.
This is a niche solution compared to the windshield and vent options, but it is the right tool for anyone running the Accessport in a truck, van, or fleet vehicle where permanent and secure placement matters more than portability.
Low-Profile Adhesive Option: Arkon GN010-SBH
For drivers who want a permanent mounting spot without a suction cup, the Arkon GN010-SBH adhesive pedestal is a clean solution. This is a half-inch low-profile base with a dual-T head on top and a 3M adhesive pad on the bottom. Place it on a flat dash area, console surface, or anywhere you have a smooth landing zone.
The head pivots and swivels for angle adjustment, and the low-profile design keeps the Accessport close to the surface, which works well on a raised center console or a dash section with some height to it. It is the mount pictured at the top of this article. If you want a permanent dedicated spot for the Accessport that does not involve any suction cup or hardware, this is the cleanest option. Same prep rules apply as the included mount: clean with alcohol, apply to a flat surface, and let it cure overnight.
Choosing the Right Mount for Your Setup
The right choice comes down to vehicle type and how you use the Accessport. Windshield placement with the GN068WD-SBH works for most daily drivers and gives you the most flexibility to move between vehicles. The GN057-SBH vent mount is the better pick if you track your car and want a clear windshield view. The GN088-L22-SBH is purpose-built for trucks and service rigs where seat rail placement makes more sense than the dash. The GN010-SBH adhesive pedestal covers anyone who wants a permanent fixed spot with no hardware involved.
Regardless of which route you go, the universal requirement across all four is the dual-T head. That is the one feature that determines whether a mount connects to the Accessport cradle, so always verify it is present before purchasing anything in this category.
