As far as i know they help with performance as well not just getting your car timed correctly im planning on getting some soon just soo i can go faster woot not much power but we have zetecs so we need all we can get am i right haha
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
01 Greenie Zx3
02 Black Svt 3 door
16 Kona Blue Fiesta ST