Basicaly mate, what every1 is saying is it's kinda obvious them shitty 99p boosters do fuck all cuz you just stick them the car and they are 99p and give 15bhp, obviously bull.! But peopl above and including my self have struts and they do work.! C pillar IMO is mainly for show and floor bars. All the others work as PROVEN. And halfrauds Saxo are shit, straight up. welcome by the way.