Hey just purchased a gt4 on a n reg!
It has only done 72000 kilometres as has been garaged for the last 4 years, it completely standard.

I have no clu whts what with these,
It's a 205
Does anyone no if these have external waste gates?
Also if so how does a screamer pipe fit onto this?
I've ordered a few gadgets for her and wana get her ney ney ney ney ney like a horse ( pigeon sound) coming off the throttle,

Any ideas?