PCI One Piece Left Side Seat Mount for Tall Driver - NA/NB Miata (90-05)

Upgrade your 1989-2005 NA/NB Mazda MX-5 (Miata) with the premium left-side, tall-driver version of the PCI Pro Car Innovations One-Piece Seat Mount: the SM-90MX5-S5L2. Specifically designed for drivers 5′10″ and taller, this mount offers a “set-back” configuration that brings your racing bucket further rearward for added legroom and better cockpit ergonomics. Built from a single piece of 3.4 mm (~.135″) carbon steel using precision CNC laser cutting and bending, the no-weld design delivers excellent stiffness, strength and weight savings compared to traditional heavy welded brackets.

By bolting directly to factory mounting points with multiple seat-mounting holes and integrated 5- & 6-point sub-belt mounting locations, installation is clean and straightforward. Whether you’re running a lightweight race bucket, harness-equipped chair, or planning serious track use, this mount supports flexibility without compromise. The black wrinkle powder-coat finish and stainless laser-etched logo add motorsport style and durability.

Tailored for tall drivers, the set-back version ensures your thighs have clearance, your hips sit deeper in the chassis, and your steering feel remains optimized during aggressive cornering. This seat mount is ideal for enthusiast Miata owners and track-day racers who demand adjustability, fitment precision, and driver-centric ergonomics.