i can deffo say that these are worth it!
i put one on my mk4 1.8t a few days ago and before my 007p was not making a noise, or that i could hear as the car is fully standard except a 3" turbo back... so that may have been drowning the sound
now tho with the S2000 filter on i can defo hear the turbo spooling and the 007p doing its job
and lets be honest lads, they look BEAST
haha