dump valves are not bling! they ruin the drive and they make you sound like a bus/girl racer with a punto trying to make yaself seem like ya goin faster than you really are!
if you fit a big cone filter up ya boost you will get turkey gobble chatter! much better!

..lol....no honestly chatter is the way forward!
and if me ole man had an aston id just jump on his insureance and drive that!