I have a 185,000 mile '00 Viggen. This may sound funny but I am resto/modding.
The Sport Rngine Mount & Sport Transmission Mount definately firmed the engine/tranny movement. Mine were shot - klunking under boost and braking. Some minor vibrations felt from the drivers perspective but not from a passengers. All in all a great buy.
Rating: [5 of 5 Stars!]