Here in my part of northern California being import-rich, modified cars are fairly common. And today/2015 most mods revolve around looks (including wheels/tires/suspension, exhaust, tint, spoilers, etc.), serious power increasing mods are far less common. Today's modern sport sedans for example often have 300+ hp already with very good performance right from the factory.
Glad you had a chance to look at IS-F fender.