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Welcome to Flyin' Miata!

Flyin' Miata door bushings

Our new 3D printed FM door bushings
Flyin' Miata door bushings
The new generation is stiffer, lighter, stronger and less expensive!

Made in the USA

Availability: On backorder
You can place an order now and we'll reserve it for you.



Please note that our printer farm is still running, but some of our printers are building parts for health care workers. This means it's taking us longer than usual to fulfill orders at the moment. We'll ship your parts as soon as we can.

Such a simple idea.

Your doors are held closed by the latch, but they're locked into place with a bracket that slides over a rubber bushing. That makes it easy to align everything, but it means the connection isn't as strong as it could be. In a convertible, the doors provide a surprising amount of structural rigidity if they're properly anchored.

These replace the soft rubber door bushings with a stiff, carbon fiber reinforced nylon replacement. The door is solidly locked into place, allowing it to reinforce the chassis. The effect is of a stiffer car with fewer squeaks. We have measured a 3% improvement in torsional rigidity on a 1990.

This is our third generation design. The new carbon reinforced nylon material  is as strong as the old Delrin version, but more resistant to dents and gouges. It also deflects less than Delrin so there's less chance of a bolt coming loose. We've also made the bushing taller to give 36% more overlap with the door cap. More overlap = less deflection = stiffer car. They're also 40% lighter. And on top of all that, they're 22% less expensive! They're produced in-house on our high-end Markforged printers.

Fits all Miatas.

Installation is quick and easy - simply remove the two bolts that hold the factory rubber in place and replace with this stiff piece. The door does need to be aligned properly, so if your Miata has an exciting history a bit of tweaking may be required. We've installed them in every car in our fleet.

Sold in pairs, enough for one car.

Additional Information

Additional Information

Part number M21-97105
TÜV approval available No
Fits: 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1999, 2000, 2001, 2002, 2003, 2004 (non-MSM), 2005 (non-MSM), MSM, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 MX-5 soft top, 2017 MX-5 soft top, 2017 MX-5 RF, 2017 Fiat 124 Spider, 2018 MX-5 soft top, 2018 MX-5 RF, 2018 Fiat 124 Spider, 2019 MX-5 soft top, 2019 MX-5 RF, 2019 Fiat 124 Spider, 2020 MX-5 soft top, 2020 MX-5 RF, 2020 Fiat 124 Spider
Manufacturer Flyin' Miata
Flyin' Miata exclusive No
Fits Exocet? No
Proposition 65 Warning: Cancer and reproductive harm
California emissions Emissions regulations do not apply

Customer Reviews 5 item(s)

Quality product
Quality product. Noticeably keeps the door shut tighter. 5 minute install. Not too sure how much it helps the handling because I did the sway bars at the same time, but even just having the doors closed more tightly is worth the fifty bucks
Review by Joe / (Posted on 4/18/2020)
Do recommend... nice in-house product Flyin Miata!
Perfect fit, 10 minutes to put in max, solid door closure, definitely more rigid than the factory rubber bushings.
Review by Raszaron / (Posted on 3/26/2020)
Solid upgrade
Bushings seem well made, went on easily and the doors close a little more solidly. Can't tell yet how much of an effect they have otherwise so far. Note... I do wish I would have thought to use a socket from the beginning because I stripped the phillips heads trying to use a screwdriver first.
Review by Jimmy / (Posted on 3/24/2020)
Great cheap upgrade for older miatas!
Installed on a 90 miata and I feel like these are a improvement over the Derlin bushings. They make such a satisfying think when closing the door dunno if it's more stiff or not but if anything they help a lot with NVH and help the seal the windows better
Review by Jonathan / (Posted on 3/16/2020)
Great product at a reasonable price
Well made, you can see the carbon fiber weave. Noticeably closed the door tighter and gives improved road feel to the car. Good mod for fiddy bucks haha
Review by Joe / (Posted on 3/1/2020)
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