Cain: I never thought of the +8 box as the 1.8 4/4 uses the same diameter pipes as the roadster and +4 where as the 1.6 ones were slightly smaller diameter. As Garret pointed out with the protection u fitted, is it necessary or just for the eye?
Cat 302: they do still I think, but I was curious if it made a difference before I bought one, and second hand would be cheaper hopefully.
Many thanks for the help guys