Cheers fellas for all the feedback, most appreciated.
Pity on the Stillen as it sounded really nice.
G Man - if you'd be willing to take my brother-in-law for a brief spin Edinburgh would be a nice run for us across the borders - let me know if or when you might be on, it would be great to hear one in person before shelling out for one!
I'd mentioned to him about importing, so will look into continental suppliers.
I have an Akropovic on my GT-R, so know the quality is awesome!
Protegimus