The Corbeau Pro Series X System 5 in vinyl, XL width, 850. The carbon fibre version of the Pro Series shell for 36 to 40 inch waists: fixed back, side mount, FIA 8855-1999, four or six point harness compatible, black vinyl, no lateral head support.
System 5, the carbon shell
Corbeau grade the Pro Series X by construction. System 1 is fibreglass, System 3 is Kevlar and this System 5 is carbon, the lightest and stiffest of the three. In vinyl XL the ladder is System 3 at 750 and System 5 at 850. A hundred pounds buys the last bit of weight, and whether that matters depends on whether the car is weighed at scrutineering.
XL
The wide shell, 36 to 40 inch waist. A bucket works by holding your hips, so this is the size for larger drivers rather than an upgrade for everyone. The standard width System 5 in vinyl is 825 and covers 32 to 36.
Vinyl
Wipes clean, copes with a car that lives outside or gets hosed out, and is the sensible trim on a shell that will see rain. Fabric breathes better on a long stint.
Colours
Black as standard. The shell can be had in eight colours or to a RAL code, made to order.
Harnesses, FIA, fitting
Four or six point. For a head and neck restraint run the six point, since a HANS needs at least five. FIA 8855-1999, expiry on the seat’s own label. Side mount, so mounts and a vehicle frame are separate. Tell us the car.
Have you written anything about this exact product?
Yes, we have covered this exact product: Which Is Right For You? Corbeau Pro Series VS Pro Series XL, and Driver Profile: Corbeau Pro Series VS Pro Series XL. That is first-hand coverage from our own builds and showroom, not brochure copy.
Will I fit in this seat?
The maker sizes this seat for drivers with a 36in to 40in waist. Those are the paper numbers; how a seat actually feels to sit in and climb out of is a different question, and our showroom team sit in these seats every day, so call us with your height and waist and we will give you the honest answer.
Is it FIA approved, and for how long?
Yes, it carries FIA 8855-1999 homologation. Every FIA seat has a not-valid-after year printed on its homologation label, and that label date is what a scrutineer checks, so look at the label on the seat you receive and check it against your championship regulations. Buying new means you get the freshest label the maker currently produces.
What do I need to fit it to my car?
This is a side-mount seat: it hangs between side brackets, the motorsport-style stack with fine height and angle control. You will need the car-specific frame, and a sliding runner if you want fore-and-aft adjustment. Our guide on base mount versus side mount walks through the whole stack, and tell us your car and we will quote the full kit.
Does it work with harnesses and a HANS device?
The shell takes 4 point compatible and 6 point compatible. If you are planning the full seat, harness, and HANS setup, tell us the car and we will spec it end to end.
How do I know it will feel right, not just fit on paper?
Fair question, because makers publish widths and weights, never feel, and two seats with identical numbers can feel nothing alike in the car. We keep the ranges on display in the Nottingham showroom, you are welcome to come and sit in them, and if you cannot get to us, call and describe your build, as the team sit in these seats every day. Our head support measurements guide shows the kind of real-world data we collect.
