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R Theory Motorsports now offers a seating solution for bottom mounted seats for your NA/NB MX-5 Miata!
These brackets are Laser cut out of a single piece of 3/16" thick steel and then bent into shape. We finish it off with a black powder coat to prevent corrosion, and to keep the brackets looking good even after many years of use. They have holes laser cut to bolt a Sparco seat directly to the mount. You can also mount almost any brand bottom mount seat to these brackets by drilling your own holes. Also compatible with our Side Mount Race Seat Bracket. Please note that this bracket is meant for aftermarket seats but can work with the stock seats with modification.
You can buy them as a combination here.
If you're trying to lower your stock seat, check out this blog entry here about your options.
**R THEORY CAREFULLY DESIGNED THIS PRODUCT TO BE AS UNIVERSAL AS POSSIBLE. DUE TO THE VAST AMOUNT OF DIFFERENT SEATS ON THE MARKET, R THEORY CANNOT GUARANTEE THAT EVERY SEAT WILL FIT OUR BRACKETS. IF YOU HAVE ANY CONCERNS ABOUT YOUR SEAT'S FITMENT, EMAIL US AT SUPPORT@RTHEORYMOTORSPORTS.COM.**
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Stock Seat
Hello everyone, I have a 2003 Miata NB and I fit in it pretty comfortably but was wanting a tiny bit more leg room. This is a great platform if you want to keep the stock seat. The only modification I had to make to the frame is add three holes. The biggest challenge at least for me was figuring out how to reattach the seat in the back since now my hands can't physically fit there. Let's just say it took some creativity that the D.O.T might not agree with. Ether way if you want to keep the stock seat and not cut up the cushion this is a great way to give yourself 4-5 inches. Just be ready to be creative it ain't a "bolt on" solution.
