Ok guys,

Well, I'm in the UK at the moment (Andover) and I want to get a few things done whilst I am here with the car.

I bought a chrome four inch tip for the muffler, because the standard one is the pits.
No, I don't have enough money at the moment for a new exhaust kit.

Two factors:

Folding mirror alarm kit?
Single DIN convertors?

Anything else I could take advantage of, with the exception of a supercharger?

Short Aerial?
Paint your calipers?
Greenstuff pads and discs?
Rear boot lip spoiler (if you don't have one that is)?
Mesh grill (if you don't have one that is)?