Front and Rear performance dampers designed by Yamaha for The STI Ultra Rare Subaru Impreza S204 STI. The dampers improves suspension performance by damping suspension oscillations from bumps in corners, giving the car a much more smooth, controlled feel through the corners. Make your Subaru a corner Monster with these STI Yamaha Performance Dampers! What is an optional performance damper?

What are the ways to increase the rigidity of the car body?  Well, for example, you can use a device called "strut tower bar", that is, the strut strut left and right suspension.  This method has found wide application in practice.  But will it be enough to strengthen only these areas?  The 

answer must be negative, since if the general “hard” equilibrium is violated, deformation will still occur, but now in other, weaker places.

As everyone must know, the stiffness of any structure is estimated by the amount of deformation per unit of force acting on this structure.  Deformation, by the way, always takes place, regardless of whether the structure is reinforced or not.  Only its size differs.  In general, even when the deviation from the optimal position (structural deformation) is measured in tenths of a millimeter, the presence of a shock-absorbing device turns out to be quite useful.  This shock-absorbing device is compressed under the action of an external force and thereby prevents a change in the position of the structure it serves.  This effect is the basis for the additional shock absorber “performance damper”, developed by Yamaha engineers.  The fact is that during the trip, car moves in the usual mode and on ordinary roads, but the very force that, in theory, should be transmitted to the body whenever the road surface is defective, was somehow not very distinct.  In addition, when it was necessary to turn the steering wheel, or in that short period of time when the steering wheel had to “win back”, in fact, everything happened very naturally, the steering wheel seemed to be completely free from the action of extraneous factors. 😀

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