These kits are built for ease, performance, and reliability, just be sure to read the rest of this blog to understand how to adapt them for Corbeau bucket seats if that’s the seat brand you’re working with.
Customer Question: Can I Use Corbeau Seats With M2, PCI, And Other Vehicle Fitting Kits?
If you’re looking to install Corbeau bucket seats into your car using a popular all-in-one fitting kit from brands like PCI Racing or M2 Motorsport, you’re not alone. These kits are a top choice for enthusiasts because they simplify the entire installation process. Each setup typically includes a vehicle-specific subframe, integrated sliding runners, and pre-mounted side brackets, making it a quick bolt-in solution for most common seat brands. But when it comes to Corbeau’s fixed-back bucket seats, there’s a twist: unlike nearly every other aftermarket seat manufacturer that uses M8 bolts, Corbeau seats are designed with M10 bolt points for their side mounts. That larger bolt size throws a wrench into compatibility with kits designed around M8 fittings.
So why does this matter? Because the side mounts included in PCI and M2 kits are pre-drilled for M8 hardware only, which means they won’t line up properly with Corbeau’s M10 bolts out of the box. This leads to a common question from customers, can I still use these kits with Corbeau seats? The answer is yes, but you’ll need to make a few adjustments. In this blog, we’ll break down exactly what those adjustments are, how to do them safely, and what parts you’ll need to get everything working smoothly. Whether you prefer a quick modification or a cleaner swap, we’ve got the solutions covered.
Why Choose an All-in-One Fitting Kit?
Before diving into the workarounds, it’s worth talking about why PCI and M2 Motorsport kits are so attractive in the first place.Â
- Vehicle-specific fitment: The subframes bolt directly to your car’s original mounting points.
- Integrated sliding runners: Allow forward and backward seat adjustment.
- Pre-attached side mounts: Let you install your bucket seat without buying extra brackets.
These kits save time, reduce guesswork, and make the install feel truly plug-and-play, at least, until you introduce a Corbeau seat into the mix. Since the M10 bolts won’t pass through the M8 mount holes, a standard install isn’t possible. But that doesn’t mean you can’t still use these kits, it just takes one of two minor adaptations.
Option 1: Bore Out the Side Mount Bolt Holes to Fit M10 Bolts
The first method is to drill or bore out the bolt holes on the included side mounts so they can accept Corbeau’s M10 bolts.
What You Need to Know:
- PCI and M2 side mounts are made from 3mm thick steel, which is strong enough to tolerate the slight increase in bolt size (from 8mm to 10mm).
- A 2mm enlargement is all that’s needed.
- Once drilled, the M10 bolts will seat correctly and safely into the side mounts.
Pros:
- Quick and cost-effective
- Lets you keep the original mounts supplied in the kit
Cons:
- Requires tools and a steady hand
- Once drilled, the side mounts are permanently modified
- May void any manufacturer warranties depending on the brand
If you’re confident with tools and want to make the most of the side mounts you already have, this is a solid and widely used solution.
Option 2: Swap to M10-Compatible Side Mounts
If you’d rather not drill into brand-new side mounts, the alternative is to simply swap them out for a set of brackets that are designed to work with M10 bolts.
Our Endurance Motorsport M10 Side Mounts are the perfect match:
🔗 M10 Steel Side Mounts
These are specifically made for the Corbeau motorsport seat range and feature:
- Multiple base mount holes to suit a wide range of frames
- Long side slot tracks for easy angle and height adjustment
- Thicker steel construction to match Corbeau’s robust M10 requirements
They bolt straight onto PCI and M2 subframes and runners, replacing the M8 side mounts and giving you a seamless fit with your Corbeau seats.
Pros:
- No modification required
- Specifically designed for Corbeau
- Strong, adjustable, and versatile
Cons:
- Slightly more expensive than drilling
- Extra brackets to purchase
- For most customers looking for a clean and worry-free installation, this is the easiest and safest route.
Link to Our M10-Compatible Side Mounts for Corbeau Seats
At GSM Performance, we stock a wide range of complete FIA-approved harnesses from top-tier motorsport brands. These are all tested, homologated, and safe when used as complete sets.
At GSM Performance, we stock M10-compatible side mounts designed specifically to fit Corbeau Motorsport seats. These mounts are robust, versatile, and offer a wide range of adjustments.
Key features of our Corbeau-compatible side mounts:
- M10 hole spacing on both sides for perfect alignment
- Multiple base mounting slots for frame/sliding runner compatibility
- Broad adjustability to fine-tune the tilt and rake of the seat
- Black powder-coated steel for long-term durability
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Why Do Corbeau Seats Use M10 Bolts?
This decision isn’t random. Corbeau uses M10 bolt fittings on their side-mounted seats to deliver maximum strength and safety, especially for motorsport use. Larger bolts = higher shear strength, which means:
- Greater resistance to impacts
- Higher clamping force between seat and side mount
- Better long-term durability under racing stress
It’s a unique design decision that prioritises driver safety and performance, even if it creates some install complications. Fortunately, with the right side mounts or modifications, you can easily accommodate this setup.
Browse Our M2 Motorsport & PCI Racing Seat Frame Listings
If you’re in the market for an easy-to-fit, all-in-one seat installation kit, M2 Motorsport and PCI Racing frames are among the most popular options we offer. These kits combine a vehicle-specific subframe with integrated sliding runners and side mounts, taking the guesswork out of seat fitment. Designed for direct bolt-in installation, they’re a go-to solution for customers who want a fast and tidy upgrade without the hassle of measuring and fabricating their own setup.
We’ve got hundreds of listings across both brands for a wide range of makes and models. Whether you’re fitting seats into a Honda Civic, BMW 3 Series, Mazda MX-5, or something more niche, there’s likely a compatible option ready to go. Simply use the links below to browse through our PCI and M2 ranges, and you’ll be able to find a kit tailored to your car.
In-Store: Try Corbeau Motorsport Seats Yourself
We’re proud to have a wide selection of Corbeau FIA-approved bucket seats on display in our showroom, ready for testing and viewing in person. If you’re not sure which Corbeau seat suits your build, or whether the M10 mounting is right for you, you can visit us in-store to:
- Test seat fitment and comfort
- Explore different trim and material options
- Chat with our expert team for installation advice
Whether you’re building a dedicated race car or prepping your fast road car for weekend track days, our Corbeau display is a great place to start.
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Final Thoughts – Easy Fixes for M10 Seat Setups
While Corbeau’s use of M10 bolts can seem like a hurdle when fitting seats with PCI or M2 Motorsport frame kits, it’s far from a dealbreaker. Whether you choose to drill out the M8 side mounts or swap them for purpose-built M10 brackets, both methods give you a safe and strong installation. At GSM Performance, we stock the most popular fitting kits and Endurance M10 side mounts. We’re always happy to advise based on your car, kit, and goals. Just get in touch if you’re unsure which route to take, and we’ll help make your Corbeau seat install smooth and secure.
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