MKII Urethane Bushing Kits
The kit is manufactured by Prothane and was
originally distributed exclusively by High & Tight Motorsports. Urethane
suspension bushings are considered by many people to be the best upgrade you can
do for your car's handling.
Common Questions:
WILL I LOSE RIDE
QUALITY? The original rubber bushing was
fairly soft, which helped attenuate noise and vibration that is generated
by the tires and road surface. Increasing the hardness of the bushings either
with harder rubber, urethane, or even bronze will allow more transmission of
noise and vibrations. Some manufacturers formulate the hardness and design to
reduce this effect. A softer urethane bushing allows the vehicle to perform
better without the harshness, even over rubber components of the same hardness.
The only change in ride quality is increased performance. This is why the
Prothane total kit is a better choice than TRD bushings.
WHY USE URETHANE? Factory supplied
rubber components are on the soft side to accommodate the typical car buyer.
They tend to deteriorate very rapidly and, since the MR2 is now in it's 16th
year, the OEM rubber bushings have long since lost their effectiveness. Most
MK1's now suffer from "spongy" and less than ideal handling. Urethane
will correct these conditions while improving drivability and ride quality.
DOES URETHANE SQUEAK?
In a word, NO! Squeaking is caused by high frequency vibrations that can
be heard rather than felt. It is usually caused by lack of lubrication, poor
installation, incorrect part, or urethane that may be too hard for the
application. In sway bar mount applications, most squeaking is the result of not
cleaning the bar thoroughly prior to installation and failing to use the
supplied "squeak proof" Super Grease. Additionally, the MR2 bushings
were manufactured with grooves and channels to hold the Super Grease to provide
long-lasting performance.
If you’ve added aftermarket springs and struts, but still rely on OEM rubber bushings, you have not yet realized the full potential of your upgraded suspension components. Normally, the addition of urethane bushings improved handling but compromised ride quality. This is not the case with the HT urethane bushing kit. In fact, you’ll be pleasantly surprised to find that we’ve actually been able to achieve the elusive delicate balance of go-kart handling without the bone jarring ride commonly associated with urethane bushings. This is because urethane bushings allow your strut dampers to absorb the shock normally absorbed by your old rubber bushings.
The
result is a firmer, sportier suspension,
without compromising ride quality.
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MKII Kit Includes: 1. Front and rear control arm bushings |


All bushing kits stocked by ATS are BLACK in color
Note: Toyota offered as many as 5 different diameter front sway bars for the MK2 MR2. This kit contains bushings molded to the 1993+ bushing, which was 19mm and has a slightly smaller diameter bracket radius. $110