The VAC BMW Race Seat Installation Kit is the easiest, most reliable way to mount aftermarket race seats into your BMW. But what happens when you want to retain your factory 3-point seat belt for street legality and everyday driveability?
✅ The Solution: VAC Factory Seat Belt Adapter Kit
When installing fixed-back or bucket race seats, most BMWs lose the ability to use the OEM seat-mounted 3-point buckle -- especially in modern models where the buckle is integrated with the seat base. In many states or countries, this renders your car not street-legal.
That's why we created this kit: to retain the factory 3-point seat belt system after removing the stock seats.
📦 What's Included
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Mounting bracket to retain OEM female seat belt receptacle (buckle)
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Grade 10.9 hardware
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Optional secondary bracket (for Z3, Z4, and 4-door models)
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Designed to bolt directly to VAC Floor Mount Adapter (FMA) Kits
You can sandwich this bracket between the VAC FMA and the chassis, or mount it on top depending on your seat rail height and personal preference.
🚘 Fitment Guide (by receptacle mount style):
| BMW Chassis | Mount Type | VAC Kit Requirement |
| E30, E34, E36 |
Chassis-mounted (25mm) |
Optional (if chassis mount retained) |
| E46, E9X, E8X |
Seat-mounted (22mm) |
✅ Required |
| F30, F80, G20, G80 |
Seat-mounted (22mm) |
✅ Required |
| Z3, Z4 (E85/E89) |
Seat-mounted |
✅ Requires 2nd bracket (included) |
✅ Recommended for track-day builds, dual-duty cars, and any BMW running VAC FMAs or Race Seat Install Kits while retaining stock 3-point belts.
⚠️ Sensor Notice
This adapter does not contain buckle sensors -- meaning:
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Seat belt light and airbag light may remain illuminated
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Ideal for off-road, track day, or retrofitted cars where full SRS functionality is not required
🧠 VAC Tech Tips:
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Required on all 4-door models and Z3/Z4 using VAC seat base kits.
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Works with most BMWs using seat-mounted belt buckles (22mm).
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If you're also installing a racing harness, this adapter makes our VAC Lap Belt Mounting Bracket Kit redundant -- just add a harness eye bolt in place of the standard bolt, and use both the harness and 3-point belt on the same anchor point.
👨🔧 Technician's Note:
Because race seat widths and mounting clearances vary, this kit may not allow a factory belt to fully restrain the driver in every seating position. It ensures legal compliance by keeping the 3-point belt in the car -- but we strongly recommend using proper 5- or 6-point harnesses for any track use with fixed-back race seats.