looks the part, but thats about it, to get a significant performance increase from one of them you need to spend mega bucks. although 300bhp is more than I thought they devolped.
It propells my nearly 2 ton saloon up to the region of 175 mph with limiter removed (which I have never and don't intend to do) so a light fibreglass kit like that should be scary 326 BHP is the standard