I had these coilovers on my old b7 a4 and I liked them for the most part. When it comes to reliability, i feel that these coilovers are extremely well made and are a good choice for the money, but in the end I would have went with a slightly stiffer setup, or at least one that had the potential of being stiffer. I adjusted my set twice, resetting them to what I thought was the stiffest setting, and I found that it was a very comfortable at cruising/highway speeds. I wouldn't describe them as floaty, but they definitely were not stiff enough to call them sporty. In fact, the first time they were on the car, they felt less stiff than my OEM sport suspension (hence the reason i adjusted the second time).
I found that the car was bouncy at low speeds, but only over small bumps in the road. I often felt like the car would raise up (float) and there was a delay in the time it would take to come back down if that makes sense, and this was at the stiffest setting. Again, at highway speeds, it was very comfortable and i barely felt any float, but i was looking for something sportier in between the Koni's and something like a Bilstein pss9.
When it came to cornering, i was not impressed at all. I had added a RS4 sway bar, yet i still felt some sway when I would take turns in a spirited manner - again this was at the stiffest setting. I feel that Koni's are made to maintain a slightly more sporty feel over OEM sport suspension. You may notice a bigger difference coming from non sport suspension. If you are looking for something that has a more solid and sporty feel, I would suggest another set of coilovers, potentially KW's. In the end i was happy with how they sat, and how they felt on the highway, but i always felt like i never got my money out of them when it came to cornering
Hope this helps
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