The B8 generation A4 arrived in 2008 with a multilink rear axle as standard and a longer wheelbase than the B7 it replaced. The 3.0 TFSI S4 ran alongside it from 2009 and became a track-day saloon for owners who wanted quattro traction and four doors without the compromise. Standard seats in the B8 hold you well on a motorway, but the bolsters show their limits under anything more committed. An S4 on a circuit communicates a great deal through the seat, and the factory unit runs out of lateral support before the chassis does.
We stock one direct-fit subframe for the A4 B8. The Cobra frame bolts to the factory floor points, the sliding runner is included in the price, and the fitting section below covers the airbag wiring consideration that is specific to this generation. The five seats here are all a direct fit through that route.
We stock one fitting frame for the A4 B8: the Cobra direct-fit subframe, part SU-AU-A4. It picks up the factory seat mounting points on the B8 floor without any drilling or adaptation on a standard car. The subframe exposes a 291mm x 330mm bolt pattern, which determines your seat options from here.
One consideration specific to the B8: both seats are wired for a side airbag, and the passenger seat carries an occupancy sensor. Remove either seat and the car will log a fault and keep it lit. Some B8s need a resistor to satisfy the electronics, and which one depends on the year and specification of your car. Tell us both when you order the frame and we will confirm before anything goes on the ramp.
Part SU-AU-A4, £231.66 inc VAT per seat. Sliding runner included, no extra purchase needed. Base mount at 291mm x 330mm. Takes Cobra recliners and Corbeau recliners, which are drilled for both the 291mm and 345mm patterns.
Priced per seat position. Two seats mean two frames in the basket. The Cobra frame includes the sliding runner; Sparco, Planted and OMP charge for the runner separately. Compare totals rather than headline frame prices.
Every reclining seat in this guide uses a base mount pattern. The Cobra subframe for the A4 B8 exposes 291mm x 330mm. Cobra recliners in this guide use that pattern directly. The two Corbeau seats are drilled for both 291mm and 345mm, so they also bolt straight to the Cobra subframe without an adapter. All five seats are a direct fit for the A4 B8.
| Seat | Bolt pattern | Cobra subframe |
|---|---|---|
| Corbeau Sportline RRS | 291 or 345 | Fits |
| Cobra Daytona | 291 x 330 | Fits |
| Corbeau SVR | 291 or 345 | Fits |
| Cobra Stuttgart Vinyl | 291 x 330 | Fits |
| Cobra Misano Anniversary | 291 x 330 | Fits |
The RRS comes as a matched pair at £984 inc VAT in black vinyl. For anyone doing both seats at once, it is the most direct route in this guide. The backrest gives more shoulder support than the A4’s factory unit without pulling the bolsters so tight that the cabin feels smaller. It suits a B8 saloon where the stock seats do most things well enough but the lateral support has softened with time.
Corbeau build the RRS and the SVR on the same base but with different backrest heights. The RRS runs taller, which suits most drivers in a saloon with adequate headroom. Both bolt to the Cobra subframe via the 291mm pattern in the Corbeau base.
The Daytona at £599 inc VAT is the single-seat entry point among the Cobra picks in this guide. The bolsters are softer than the Stuttgart but firmer than the A4’s factory unit, and the open base is practical in a car where front seat access happens on every journey. At 13.5kg it is not a lightweight, but that is weight you feel at the pump rather than in the car.
For S4 owners fitting a driver’s seat before a circuit session, the Daytona is the starting point in this lineup. It takes a four-point harness and bolts straight to the Cobra subframe without any adapter. Cameron has fitted these into B8 saloons where the brief was solid support at a straightforward cost before the car went to a track day.
The SVR is built on the same base as the RRS but runs without an integrated headrest, which puts the top of the backrest lower and gives taller drivers more clearance between their helmet and the headlining. At £1,020 inc VAT for a matched pair it sits just above the RRS in price, and the profile difference is a practical matter rather than a cosmetic one. A lowered B8 saloon or a driver on the taller side can easily close the margin that was there from the factory.
The decision between the RRS and SVR comes down to how much headroom you actually have once the seat is in position. If you are close to six foot in a B8 saloon and are not certain, call us before ordering. The fitment is the same either way.
The Stuttgart Vinyl at £619 inc VAT sits just above the Daytona in price and above it in shoulder support and trim variety. Five material options are available: plain vinyl, basketweave, corduroy, houndstooth, and tartan. For an A4 that works as a daily driver as well as a track-day car, the trim choice means the seat looks considered rather than functional, which suits the B8 cabin.
At 13.2kg it is fractionally lighter than the Daytona. The shoulder support is more pronounced, holding you through a fast B-road push where most B8 owners who are not on a circuit actually use the car. It has a built-in headrest and bolts to the Cobra subframe on the 291mm x 330mm pattern.
The Misano Anniversary is the top of the Cobra recliner range at £1,649 inc VAT. At 11.5kg it is the lightest seat in this guide despite being the most substantial in construction, and the materials are clearly different from anything else in the Cobra lineup. It is made to order with a four to six week lead time. Most A4 owners who order one have worked through a previous seat and know exactly what they want.
If you are comparing the Misano to the Stuttgart or the Daytona, the answer is probably the Stuttgart for now. If you are asking about the lead time and the spec options, call us and we will go through it properly.
The Cobra subframe bolts to the A4 B8’s factory seat mounting points. No drilling is needed on a standard B8 floor. Before the seat goes on the ramp, check whether your specific car needs an airbag resistor: both seats carry a side airbag, and the passenger seat has occupancy sensing. An unplugged seat will light the dashboard and keep it lit until the fault is resolved. Tell us your year and specification when you order the frame and we will confirm what is needed before you start.
Torque the floor bolts to specification and check seat belt buckle clearance once the seat is in position. The sliding runner is included in the frame price; Sparco, Planted and OMP all charge for the runner separately. The £231.66 per seat covers the frame and runner complete.
| Your seat | Runner situation | Frame to order |
|---|---|---|
| Any seat in this guide | Runner included in the subframe price, no separate purchase | Cobra A4 B8 subframe (SU-AU-A4), £231.66 inc VAT per seat |
| Seat | Bolt pattern | Waist | Height | Weight | Price inc VAT |
|---|---|---|---|---|---|
| Corbeau RRS (pair) | 291 or 345 | 32 to 38in | All heights | Not published | £984 (pair) |
| Cobra Daytona | 291 x 330 | 32 to 38in | All heights | 13.5 kg | £599 |
| Corbeau SVR (pair) | 291 or 345 | 32 to 38in | All heights | Not published | £1,020 (pair) |
| Cobra Stuttgart Vinyl | 291 x 330 | 32 to 38in | All heights | 13.2 kg | £619 |
| Cobra Misano Anniversary | 291 x 330 | 32 to 38in | All heights | 11.5 kg | £1,649 |
Prices include VAT and were correct on 6 September 2026. Seat weights for the Corbeau RRS and SVR are not published by the manufacturer. Waist and height figures are the manufacturers’ own published fitment ranges; if you are near a boundary, ask us before ordering.
No. The Cobra subframe bolts to the A4 B8's existing factory seat mounting points on a standard B8 floor. No drilling or adaptation is needed on a standard car. Torque the floor bolts correctly and check seat belt buckle clearance once the seat is in position.
Both seats in the B8 carry a side airbag, and the passenger seat has an occupancy sensor. Remove either seat and the car will log a fault that stays lit until it is resolved. Some B8s need a resistor; which one depends on the year and specification of your car. Tell us both when you order the frame and we will confirm before the car goes on the ramp.
Yes. The Corbeau RRS and SVR in this guide are drilled for both 291mm and 345mm patterns. The Cobra subframe exposes 291mm x 330mm, so both Corbeau seats bolt straight to it without an adapter. All five seats in this guide are a direct fit for the A4 B8.
Yes. The sliding runner is included in the £231.66 per seat frame price. Sparco, Planted and OMP charge for the runner on top of the frame price. Compare totals rather than headline frame prices; the Cobra frame covers the complete package in one line.
Every seat in this guide is listed by its manufacturer as 4 point compatible, with belt slots in the backrest. If you are planning harnesses on circuit, tell us when you order and we will confirm the whole setup works for your car.
For a standard B8 A4 on the road with occasional track days, the RRS pair is the starting point. Both seats sorted for £984, and the dual bolt pattern means they travel with the car if you ever change the frame setup. If you are only fitting the driver’s seat, the Daytona at £599 is the entry-level Cobra pick.
The Stuttgart Vinyl is where Cameron’s recommendation goes for a B8 S4 doing regular circuit sessions. It holds you correctly through a fast lap and does not punish you on the drive home. The trim options mean it looks at home in the A4’s cabin rather than obviously bolted on, and the tartan option suits an S4 well. The Daytona gets you the same Cobra build at a slightly lower cost if the trim choice does not factor in.
The SVR is the pick when headroom is a real constraint. No integrated headrest, lower backrest profile, same subframe fitment as the RRS. If you are a tall driver in a lowered B8 and you are not certain the RRS will fit, call us first.
The Misano is for when the seat is the decision and the A4 is secondary to it. You will know when that applies.
Ring us on 0115 9893488 with your height and waist measurement and Cameron will tell you which of these five suits your car. Most conversations take five minutes because the answer is usually clear once we know how the car is used.
A Clio Mk2 owner with one Cobra Suzuka T wants a second, a size up, for the driver’s side. Cobra’s own dimensions for the Standard and GT drawn side by side, what 30 mm means in a Clio, and the frame, runner and side mounts that put a Suzuka on a Mk2 floor.
The five reclining sport seats we rate for the Audi A4 B8, with the Cobra direct-fit subframe that bolts to the factory floor points and includes the sliding runner. Plus the B8-specific airbag wiring note.
The question we get asked most: can you run a harness without a roll cage? Yes, two proper routes for road and track day cars, the E-marked clip-in route from £102.00 and the FIA route from £246.00, with the anchorages and the seat that make either work.
The five reclining sport seats we rate for the Audi A3 Mk2 (8P), with the Cobra direct-fit subframe that bolts to the factory floor points and includes the sliding runner at no extra cost.
A customer sent in his MG ZS track day build: Sabelt GT3 seats and Corbeau three point road harnesses supplied by us, fitted on his own fabricated brackets over universal side mounts. The full setup, and why it made Garreth’s morning.
The five reclining sport seats we rate for the Audi A1 Mk1, with the Cobra direct-fit subframe that bolts straight to the factory mounting points, runner included.
