I've also enjoyed using their system of parts, build quality and engineering is on par with price, great customer service. Being a mod junkie for decades it's nice working with a shop that has a proper combination of parts they have designed and have experience with.
The mounts added nice throttle response, if only because you feel more connected to the power, kinda feels like the car is "lighter". No more rocking the engine in rubber baby buggy bumpers =)
As an after effect, when the car is cold you'll get a healthy, but not annoying seat vibration. Combined with the other tightened suspension bits, some squeaks and creaks. When warmed up that lessens and she's ready to roll. With dog bone you may get a vibration on decel depending on conditions, noticeable, not annoying, no extra sounds. The engine idle vibration when warm will let you know you're special =) You move and it's gone.
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