The ST150 never quite got the recognition it deserved. It arrived in 2005 as a 2.0-litre Duratec Fiesta, sitting somewhere between the ordinary 1.4 and a more committed track-only build, and it found its best audience in club racing through the Fiesta ST Trophy series. Two decades later a lot of those cars are still on circuit, or back on circuit after a road stint, and their owners are dealing with the same thing: factory seats that were acceptable for the road but are not built for a sustained track session, and which are usually well past their best by now.
We get two types of enquiry about this car. The first is for a full bucket, which is a reasonable choice for a dedicated track car. The second is for a reclining seat that is still street-legal, comfortable on the drive to a circuit, and reclines at the petrol station. This guide covers the second option. One direct-fit frame in our range bolts to the ST150 floor without drilling, takes the whole Cobra bolt pattern, and between the Cobra and Corbeau ranges it opens up five seats worth considering.
The Cobra subframe drops straight to the ST150’s factory floor mounting points with no drilling. It covers the full production run from 2005 to 2008. A sliding runner is included in the price. Most subframes are sold without one and runners are a separate purchase, so the ST150 frame is slightly better value than it first looks. Order driver side, passenger side, or both as a pair depending on how many seats you are replacing.
Part SU-FO-ESMK5-ST150, £255.00 inc VAT a side. Sliding runner included. Available as driver, passenger or pair. Fits the Mk5 from 2005 to 2008 on the factory mounting points.
Every reclining seat we sell uses a base mount pattern, and on this car there is one that matters: the Cobra 291mm x 330mm. All five seats below either use this pattern or are drilled for both 291mm and 345mm, meaning they also take it. With a single frame route the choice comes down to which seat to put on it rather than which frame to buy first. The Corbeau PSR and RRS Low Base are drilled for both patterns, which means they will also fit a Sparco or Planted bracket in another car if you ever move them on; for the Cobra seats, the ST150 subframe is the only route we sell for this car.
| Seat | Bolt pattern | Cobra subframe |
|---|---|---|
| Corbeau PSR | 291 or 345 | Fits |
| Cobra Daytona | 291 x 330 | Fits |
| Corbeau Sportline RRS Low Base | 291 or 345 | Fits |
| Cobra Le Mans Heritage | 291 x 330 | Fits |
| Cobra Misano Anniversary | 291 x 330 | Fits |
The PSR is the seat we point ST150 owners at first when they are doing both sides at once. A pair costs £558 inc VAT, which puts two proper sport recliners in the car for less than the price of a single mid-range seat elsewhere in this guide. It is a genuine recliner with a sculpted backrest and real lateral support, not a flat seat with a lean-back mechanism, and the cloth trim is easy to keep presentable after outdoor events. The bolster is softer than the RRS, which makes it the more forgiving option if the car covers road miles as well as track days.
The Daytona is the cheapest single seat from Cobra and it fits the ST150 subframe directly. At 13.5kg it is lighter than most people expect for a seat with this much structure, and the drop in seating height compared to the stock Fiesta position is noticeable: on a car where the original seating height works against the handling rather than with it, sitting lower makes the car feel better from the moment you leave the pit lane. If you are replacing one seat rather than both, this is the place to start from the Cobra range.
The RRS Low Base steps up from the PSR in two ways: the backrest is taller and more sculpted at the shoulder, and the Low Base version brings the overall seat height down slightly compared to the standard RRS. That matters on a car where headroom is not generous. It is drilled for both 291mm and 345mm so it bolts straight to the Cobra subframe, and it comes in cloth, leather or vinyl. The trim choice makes it one of the more flexible seats in this guide for a car that might do track days in summer and road miles in winter, because the vinyl version in particular takes wet kit and event dust without complaint.
The Le Mans Heritage is the Cobra seat to pick when the ST150 is doing regular circuit sessions. It weighs 13.4kg and has deeper bolsters than the Daytona at the shoulder and thigh, so you are braced through a corner rather than simply seated. The Heritage version adds a carbon-look trim and a period racing aesthetic without going into custom-order territory. If you want to specify your own trim, stitching, heating or lumbar, the base Le Mans is available through Cobra’s Signature range. Either way, the 291mm pattern goes straight onto the ST150 subframe alongside the seat you chose.
The Misano Anniversary sits at the top of the Cobra reclining range, and at 11.5kg it is lighter than the Daytona despite being a fuller seat. That is construction rather than compromised material, and the weight difference becomes relevant if the car is built to a class with a minimum driver weight. It is also listed as suitable for all waist sizes rather than the 32 to 38 inch range that most other seats in this guide carry, which makes it the option to consider if you have found Cobra recliners a firm fit in the past. Fitting route is the same 291mm pattern to the same subframe as every other Cobra in this guide.
The Cobra subframe for the ST150 includes a sliding runner in the price, so there is no separate runner purchase for this car. Torque the floor bolts to spec and check the seat belt buckle clearance before you drive, because a sport seat moves the buckle position relative to stock. Both sides of the car use the same subframe geometry, so if you are replacing both seats you need two subframes and two seats: the pair option on the subframe listing covers both in one order.
| Your seat | Runners to order | Works on |
|---|---|---|
| Any seat in this guide | Sliding runner included with the Cobra subframe, no additional purchase needed | Cobra ST150 direct-fit subframe |
| Seat | Bolt pattern | Waist | Height | Weight | Price inc VAT |
|---|---|---|---|---|---|
| Corbeau PSR | 291 or 345 | 32 to 38in | All heights | Not published | £558.00 (pair) |
| Cobra Daytona | 291 x 330 | 32 to 38in | All heights | 13.5kg | £599.00 |
| Corbeau Sportline RRS Low Base | 291 or 345 | 32 to 38in | All heights | Not published | £498.00 |
| Cobra Le Mans Heritage | 291 x 330 | 32 to 38in | All heights | 13.4kg | £649.00 |
| Cobra Misano Anniversary | 291 x 330 | All sizes | All heights | 11.5kg | £1,649.00 |
Prices include VAT and were correct on 10 September 2026. PSR price is for a pair of seats. Where a weight says not published, the manufacturer does not provide one.
No. The Cobra subframe bolts to the factory seat mounting points without any modification to the floor. Check the seat belt buckle clearance before you drive, because the new seat position may shift where the buckle sits relative to stock.
Every seat in this guide is listed by its manufacturer as 4 point compatible, with appropriate belt routing in the backrest. If you are fitting harnesses, let us know when you order and we can check the whole setup works together.
The frame in this guide (part SU-FO-ESMK5-ST150) is specific to the ST150 and covers the full 2005 to 2008 production run. The standard Mk5 and other variants have a different floor mounting layout. If you are not certain which variant you have, check the production plate against the build date before ordering.
Yes. Order the driver-side subframe and a single seat. The passenger side stays on its original runners. If you decide to do both sides later, order the passenger subframe and a second seat as a separate job.
If you want a fixed shell for maximum support on a track-only or competition build, we have a separate guide for that: Which bucket seats will fit my Fiesta ST150?. A recliner makes more sense if the car drives on the road as well, or if it needs to pass an MOT with a standard seat belt arrangement.
For a car doing track days a few times a year with road miles in between, I would put the RRS Low Base on the driver side. The vinyl version in particular suits a car that sees wet paddocks and a mix of conditions. If the budget stretches to both seats in one go, the PSR pair at £558 is the cleanest way to do it and leaves money for the frame and runner.
For a car that lives at circuit events rather than road use, the Le Mans Heritage is the better investment. The deeper bolsters do real work under load, and the Heritage trim holds up to regular use. The Misano Anniversary is for the driver who wants the best seat Cobra makes and is building the car to keep for a long time.
Every option above bolts to the factory mounting points. If you are stuck between the Cobra and the Corbeau, or between sizes, call us on 0115 9893488 and we will talk it through before you buy anything.
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