Complete polyurethane bushing kit for NA and NB
Complete polyurethane bushing kit for NA and NB
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Emissions: Emissions do not apply.
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Warranty: lifetime
One of the components of your car that suffers silently with age is the rubber in the suspension bushings. Over time, they break down and allow more movement of the control arms. This makes your handling sloppy and makes the car feel old.
This SuperPro polyurethane bushing set replaces just about every piece of rubber in the suspension. Poly bushings move differently than rubber ones, allowing less deflection and no pre-loading. This means more precise and consistent handling, with a slight increase in sharp impacts.
While it might seem that all poly bushings are the same, that's not true. Our SuperPro bushings use a proprietary polyurethane mix that allows for more precise control with little (if any) NVH (noise, vibration, harshness) increases. They also have details that allow the bushings to retain grease, eliminating noise. This means they won't squeak, ever, and require no maintenance (as long as you use the included grease). How confident are we of this? These include a lifetime warranty against squeaking. Of course, that lifetime warranty includes any failure as well, and there are no disqualifications for track / competition or off-road (!) use.
Includes new bushings for the control arms and stock NA end links (these bushings won't be used for NB end links).
Installation is not trivial - Mazda Miata Performance Projects runs through the process. While regular maintenance with fresh lubricant is required for cheaper poly bushings (which is why we've historically preferred rubber bushings for anything with a license plate), that's not the case with the SuperPro bushings.
These are designed for stock control arms. If your aftermarket control arms use stock bushings, these should fit, but if your control arms are an off-brand, their tolerances might not be as good and fitment might be a bit of a struggle. If you have tubular control arms, be sure they use stock-size bushings - not all do.
Customer Reviews
I know what you must be thinking, why change the bushing in a low mileage? The rubber bushings were pushed forward in the control arms rubbing metal against metal. I replaced rubber bushings in another Miata, so I knew how easy poly bushings are to install. I took the car for a shakedown cruise yesterday, I felt a slight difference between rubber and poly, the suspension moves freer with only a tiny bit of increased harshness. The difference in ride quality will fade into the background after several miles. The only question is how long before I must re-grease the bushings.
Our SuperPro bushings have a lifetime warranty, which includes squeaking, and shouldn't ever need regreasing.
The front upper control arm bushings go in easily - by hand. The lower control arm bushings put up a terrible fight until I got wise and bought a length of allthread and some hardware to press them in with great success.
Don't bother trying to use a vice or ball joint press(I tried both). Those methods don't have any way to keep the bushing aligned where the allthread forces it to line up.
A bit of a process to install. Make sure you have some kind of tool to press the bushing into the control arms, and use plenty of the grease that comes in the kit, I had lots left over and used plenty on the bushings. The car drives much better, and I only noticed a little bit of a difference in NVH. The car feels much better around an autoX course.