What do you mean by "US cars"? Aren't the springs the same across regions?I'm thinking of going with the Progressive springs; the numbers above do show it as a decent step up, but not too aggressive (e.g. RoadsterSport), while gaining the more proportional look with the wheels - a lot of US cars look like they are on tip toes.
I'll also keep the Blistein shocks. Next step would be the Progressive roll bars (or any of the other ones, but the adjustable ness of the Progressive may be handy).
Perhaps. For some vehicles. The US has obnoxious bumper and headlight height restrictions which requires manufacturers to sometimes 'lift' cars an inch or so to meet the requirements for this market.What do you mean by "US cars"? Aren't the springs the same across regions?