what on gods earth is a roar pipe lol
A waste of money, just give me the money instead of buying one, i will put it to better use.
Its basically a pipe that replaces the pipe from air filter to throttle body. Like a cheap samco hose really.....
You know, less resistance

adds 200bhp
Becuase VW obv fitted a really lame pipe to the GTI they designed when they were the best hot hatchs......