Originally Posted by azzaharvey

ive had 2 blitz nur spec r and 1 sti genome,
i'd take the sti genome all day its nearly silent on tick over and a nice little rumble when under 3k revs, then unbelieveable roar when over 3k revs.
i didnt feel any performance drop even though sti genome is 2.5" and the blitz is 3".
you"ll struggle find a second hand sti genome with the pink and yellow writing intact. i was after another sti genome but brought the next 1 up from a member on here used, its the s202 titanium back box £1100 worth new just got have it fitted.