A PCI Racing adjustable seat mount for the Mazda MX-5 NA and NB, 1989 to 2005. Part number SM-90MX5-A1.
In an NA or NB this is usually the right answer rather than the cheaper one. PCI’s adjustable mount gives the lowest possible seat fitment in their range, and in a car with a low roof, a roll bar behind your head and a helmet to fit under all of it, sitting low is not a nice to have.
The trade
No slider. The seat is set at installation and stays there. For a single driver car that costs nothing, and these cars are usually single driver cars.
It is not fixed forever either. The hardware interlocks into the slots in the seat base, so the position can be changed later with one tool and without removing the mount from the car. If you buy a different seat in two years, you are not starting again.
If the car is shared, the sliding sub frame is the version to buy instead.
Construction
Laser cut and CNC formed from one piece of 1/8 inch carbon steel, gloss black powder coat, grade 10.9 8mm hardware, five and six point sub belt mounting locations built in.
Ordering
Side mount, for a competition bucket. It bolts to the factory seat mounting points, so nothing is drilled and the standard seats come out whole. Handed, order twice for a pair.
Have you written anything useful for my car?
Yes: Corbeau PSR Seats In A Mazda MX-5 Mk1: The One Bracket That Takes Them, and Top 5 Bucket Seats For Your Mazda MX-5 Mk4 (ND), And One Kit That Fits Them All. Those are written around the same car, from real fittings and customer questions, so they are worth a look before you decide.
Will this fit my car?
This frame is car-specific, so match the vehicle in the product name to your exact car and generation. If you are unsure, send us the registration and we will confirm before you order.
Which seats does it take?
Check the bolt pattern in the specification against your seat. The Compatible seats tab above lists what bolts straight on. If your seat is not listed, tell us what you run and we will confirm the fit.
Do I keep fore-and-aft adjustment?
Only with a sliding runner between the frame and the seat, which is a separate part on PCI frames. If more than one person drives the car, budget for the runner. Our guide to sliding runners explains the options and widths.
Base mount or side mount, and does it matter?
This is a side-mount frame: the seat hangs between side brackets bolted through its flanks, the motorsport-style stack that gives fine height and angle control. Our guide on base mount versus side mount explains the whole fitting stack.
Is this for the driver or passenger side?
Both sides are available on this listing, pick driver or passenger side at the point of order (sides listed are for right-hand-drive cars). Left-hand-drive car? Ask us, as the sides swap over and availability varies by model.
