I paid the big bucks for the Renntech kit, (crank pulley, water pump, idler pulley & ECU) and they do look stock. With this kit and a sprint booster, well all I can say is WOW. When I took my car in for the four wheel alignment the alignment tech was trying to guide the guy up on the rack since it sat so low and the guy driving my car told the alignment tech to get the hell out of the way he was afraid he was going to run him over.