Check Out Our Customer's BMW E90 With Corbeau Seats and Yellow TRS Harness Belts
Customer cars, June 2025
This is a customer's BMW E90, and we think the interior is a good example of how far a road car can be taken without turning it into a race car. The front seats are a pair of Corbeau RXI reclining sport seats, the harnesses are yellow TRS Clubman four points, and the yellow carries on through the harness bar, the centre console and the door trims.
It is a fast road car that can do a track day, not a competition car, and the parts suit that well. Below we look at the harnesses, the seats, why the combination works in an E90, and the difference between road and FIA harnesses.
- A customer's BMW E90 with a yellow themed interior
- A pair of Corbeau RXI reclining sport seats
- Yellow TRS Clubman four point road harnesses
- The TRS Clubman clip-in four point is ECE road approved, not FIA
- A yellow harness bar carries the shoulder straps
- The RXI has been discontinued; the Corbeau RRS is the closest current seat
What is on this page
The E90 and its interior
The E90 has a roomy cabin and a driver focused layout, which makes it a good starting point for this kind of upgrade. The customer has kept the rear seat in place and added a harness bar behind the front seats, finished in yellow like the console and door trims. The harness shoulder straps wrap around the bar.
It looks purposeful without giving up the things that make an E90 a usable car. The seats still recline, there is still a back seat, and the harnesses clip out when they are not wanted.
From the back you can see how it goes together. The harness bar bolts in behind the front seats, and each harness's shoulder straps come through the seat back and wrap around the bar. The rear seat and its belts are still there.
Garreth's advice with any harness is to follow the maker's instructions on the angle of the shoulder straps and the anchor points, and to ask us if you are unsure before you fit anything.
The TRS Clubman road harness
The customer chose the TRS Clubman clip-in four point harness in yellow. It is the harness most of our club car customers end up with, and it is built for road and track day use, not competition.
- ECE road approved, not FIA
- 50mm (2 inch) webbing
- Push-click buckle, like a factory seat belt
- Clip-in ends that attach to eyebolts with snap hooks
- A choice of colours, including black, red, blue, yellow, green, orange, pink, silver and Miami blue
- Not HANS compatible
The clip-in ends are the practical part. The whole harness unclips from its eyebolts without tools, so it can come out for everyday driving and go back in for a track day in a couple of minutes, while the car keeps its original belts. Eyebolts are sold separately, and a four point clip-in fit uses four per harness.
A four point suits a reclining seat like the RXI. Five and six point harnesses need a crutch strap slot in the seat base and a mounting point below it, which reclining seats are not designed for.
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The Corbeau RXI, and the RRS that replaces it
The Corbeau RXI is a reclining sport seat with firmer bolsters than a factory seat and harness openings in the back. Corbeau have now discontinued it, and the seat we point people to instead is the Corbeau RRS.
The RRS is part of Corbeau’s Sportline range and follows the same idea: a reclining road seat on a steel frame, with an integrated headrest, harness slots for a four point harness, and enough support for a track day. It is base mounted, with 291mm and 345mm bolt patterns, and it is sold as the seat only, so the frame for your car is separate.
The RRS comes in black vinyl as standard, with heated, white stitched, low base, leather and Tartan versions in the range, and Corbeau can make it with other stitching colours to order. We have a standard RRS on display in the showroom to sit in. We have just had a special order pair through with blue stitching, if you want to see what that looks like.
Why the setup works in an E90
A setup like this makes sense in a car that is driven on the road most of the time and taken to the odd track day. The seats hold you better than the originals and still recline. The harnesses keep you in the seat through hard braking and cornering on a circuit, and clip out the rest of the time. The harness bar gives the shoulder straps somewhere to go without a full cage.
What it is not is a competition setup. The seats are not FIA approved and the harnesses are road approved, not FIA. If you plan to compete, the seats, harnesses and their mounting all need to meet your championship’s rules, and that is a different set of parts.
TRS road and FIA harnesses: the difference
| TRS road harness (Clubman) | TRS FIA harness (Magnum) | |
|---|---|---|
| Approval | ECE road approved | FIA homologated |
| Buckle | Push-click, like a seat belt | Competition buckle |
| Intended use | Road and track days | Competition |
| Label | No expiry year | FIA label with a "not valid after" year |
| Price | Lower | Higher |
We sell both. For a car like this E90, the road harness is the right choice: it is simpler to live with and it is approved for the road. For competition, you need an FIA harness, and your championship sets which FIA standards and dates it accepts. If you are fitting a harness to a road car, ask your testing station about the installation and tell your insurer. Our three point road harness guide covers the simplest road option.
What seats are in this BMW E90?
A pair of Corbeau RXI reclining sport seats.
Which harnesses did the customer use?
Yellow TRS Clubman clip-in four point harnesses, which are ECE road approved.
Is the Corbeau RXI still available?
No. Corbeau have discontinued it, and the Corbeau RRS is the closest current seat.
Are eyebolts included with the TRS Clubman clip-in harness?
Our listings sell them separately; a four point clip-in fit uses four per harness.
Can I fit a six point harness to a reclining seat?
Reclining seats are not designed for the crutch straps of a five or six point harness, so a four point is the usual choice.
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Road and track daysTRS Clubman clip-in four point
ECE road approved, clips out without tools, in a colour to suit your car.
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