I ran the Utlra Lites on my TT for 4 years. It was my daily driver and my weekend drag, autocross and road track car as well. I spent the last 3 years on Ohau and the roads there suck! Still, I had no issues with the coil overs. If you put them on the softest setting, it is compariable to the stock suspension in sport mode. IMO, they are an excellent all around coilover.