A PCI Racing sliding sub frame for the Honda S2000 AP1 and AP2, 1999 to 2010, in the wide version. Part number SM-AP1-S1.
Wide is the important word and it is a genuine choice rather than a label. PCI make this mount in a wide and a narrow version, and the one you need depends on the seat. A broader shell needs the wide mount to sit square; a narrow competition bucket sits better on the narrow one.
Tell us the seat you are fitting and we will tell you which to order. Getting this wrong is the most common mistake on S2000 mounts and it is a two minute question.
The slider
The seat moves fore and aft after installation. PCI’s S1 slider bolts to the base with four bolts rather than the two a conventional slider uses, which they describe as twice as strong as two bolt mounting.
If you want the lowest possible fitment and do not need the seat to move, the adjustable mount sits lower and costs less. In an S2000, with the roof and a roll bar to clear, that is worth considering.
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.
Side mount, handed, order twice for a pair.
Have you written anything about this exact product?
Yes, we have covered this exact product: The 2026 Honda S2000 - A modern Revival Of An Iconic Roadster, and What Fibreglass Bucket Seats Fit In A Honda S2000?. That is first-hand coverage from our own builds and showroom, not brochure copy.
Will this fit my car?
This frame is made for the Honda S2000. Chassis code and years matter more than the badge, as floor pans change between generations, so if your car sits near a changeover year, 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.
