Where is the best place to source a 1.9cdti airbox and what pipework is needed to fit it!?! Also may consider getting the VXR AFM aswell so what pipes would be needed if I went down that route!?!
I see Courtenay sports do a set but it'l like £200 or so and that seems expensive to me!?!
Also does the airbox have to be from a mk4 to fit a mk4? or will an airbox off a mk5 also fit the mk4!?!