Audi A4/S4/Rs4/A5/S5/Rs5 B9 16- Rear Subfrmae Anti-Vibration Insert - 4pcs/Set Hardrace

Quality, reliability and stability of reinforced products is HARDRACE's priority. Because all the parts that are mounted under the car must be able to hold up its weight and also withstand the stresses of hard driving. This means that parts that cannot withstand the pressure can have disastrous consequences.
To prevent something like this from happening, quality is something that guarantees safety. That's why HARDRACE quality tests all their products to ensure they are stable and you can have confidence in the parts you've fitted!

Tested by professional riders

Speed and a lot of power in itself does not give fast lap times. To lower the lap times, a fast and well-balanced car is required which with 100% probability hits the apex in every corner.
Professional drivers test HARDRACE products on tracks under the most extreme conditions. With the help of their feedback, the products are developed until they are 100% and give you the perfect chassis part that you can expect from this company!

HARDRACE in brief:

• High quality!
• Wide assortment that covers most applications
• Over 20 years of experience from tracks around the world
• Constant development of new products!

Pillowball or Reinforced rubber bushing?

Is the most expensive always the best? The answer to that question is no. It depends on the purpose.
HARDRACE different braces are usually available in 2 different variants, either with Pillowball bushings or with Reinforced Rubber Bushings where the former is usually slightly more expensive.

Pillowball:
If your car only goes on the track, the Pillowball bushing is absolutely recommended. This form of bushing not only gives you a suspension that moves completely freely and every part of the chassis can work undisturbed. It also gives you a bushing that doesn't flex anything and the car is thus much more precise in the suspension.
However, the Pillowball has a disadvantage which means that you prefer not to have them on a used car. They transport sound very efficiently, which means that tire noise etc. is transported into the cabin and thus reduces comfort!

Reinforced Rubber Bushings:
These bushings are the perfect middle ground between the standard bushing which is quite soft and the pillowball bushing which is a comfort reducer. The Reinforced Rubber Bushing is a much stiffer rubber bushing that gives the brace more precision, but as it is not metal to metal, these absorb road noise and comfort is not affected. So if you like curvy roads all weekend this is the way to go!