Good-Win Racing Mazda Performance Parts

Custom Driver's Side Miata Seat Rail for RACE SEATS.


Miata 1990-2005 · Interior · Seats and Covers

Part Number: 61-0555B

Application: 1990-2005

Price: $99.00


Custom Driver's Side Miata Seat Rail for RACE SEATS.
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Finally, a convenient way to get a race seat into your NA/NB. Driver's side only! NOT a general purpose mount!!! These are custom made to match the holes in the floor of your NA/NB Miata which mount your factory seat. 3/16' cold rolled steel. These make race seats a bolt in! They are pre-drilled for Sparco mounts/sliders but can be adapted to most race seats. Includes hardware for use with SPARCO mounts including special clearance nuts and more.

BRIAN'S APPLICATION NOTES: In case it is not obvious from the photo above, the item is sent bare steel so that you have the option of welding to it. Typical options that customers weld to the rail are eyes for harness clip in. That means it may arrive with a petina of rust already starting and it should be cleaned up with a little steel wool and hit with a quick coat of spray paint before install. Most drivers use these with a combination of ALL THREE of the following: Sparco seats, Sparco side mounts, and Sparco sliders (rails are pre-drilled for sliders). In my own Miata I skip the slider because that gets me another half inch lower in the car but that meant I drilled additional holes to get the side mounts directly onto these rails.

Note that MOST seats are too wide for the Miata and even with our rails you will NOT fit them in the car without moving metal around the trans tunnel and removing inner door skins. Thus, important to spend some time considering your seat choices and pick a narrow seat to avoid complications on install.

Don't call and ask us what seat to use because that is like asking what shoes and jeans fit you. You really must show up to events and see what other Miata owners are using and then SIT IN THOSE seats to figure out what seat actually fits YOU. Sparco Speed is a popular choice, but nobody knows if that fits you until you sit in it. These are made in small batches and typically take at least a few days to make and ship, please consider that fact in your build plans when you order.

*** Product images may differ from actual product appearance ***


After reading many other positive reviews on both the GWR and Miata forums I finally decided to buy this product. My main concern for many months was whether or not I was up to the task of installing the header. But with the excellent instructions on Brian's forum as well as several Miata forum threads it turned out easier than I expected. After receiving notice that the header would arrive on a Friday afternoon, I began the disassembly process. After about 3 hours I had the stock manifold out. Later that afternoon the new catted header arrived right on schedule. And it is a thing of beauty. I opted for the stainless version. Installation on Saturday morning took another 3 hours, although I could have shaved some time off of that but I was actually enjoying the process of double checking torque values and cleaning up my engine compartment. I already have the GWR catted midpipe, so that connection was a snap. I put everything back together, reconnected my battery, and went for a drive. NO CODES! Nice throaty sound with my RSII muffler, and a significant boost in power and low/mid torque. Another happy camper here. I since have added a M-E tune and I feel I have realized all of the gains that Brian has achieved on his 2012 project Miata. I've put several hundred miles on my Miata since the install with zero problems. This is the car that Mazda should have built all along. Thanks Brian.

-- Ron P.

I got the oil cooler installed and I'm diggin' it! Thanks. (product # 10-10012)

-- Shon