Because they have the steering arm as part of them. I did think that vectras ones looked close, but no idea if they are actually even close to usable. If you search out Dez's tread on his b2 80 build, you'll see the work needed to build a set.
some induction noise, not a lot else. Might release 1 or 2 BHP, nothing noticeable. Even if you added a full performance exhaust system your unlikely to feel any real difference, although the change in noise can make it feel a bit quicker
Wheel refurb Gunk the engine bay Wheels off and clean, spray and clear coat wheel arches Touch up paint Repair rip in drivers seat Source S2 steering wheel Fix loose drivers seat belt Replace 2 front tyres Source original indicator lenses Repair small tear in roof Waterproof roof etc etc etc
I think these used the ABK engine which are the equivalent of a VW 2E engine, with a counterflow head.
Not a huge amount you can do to these, the head is the restriction, so to get more power your looking at porting and polishing the head and fitting a more aggressive camshaft. On the VW 2E engine people have seen gains by fitting the head and cam from a PB code engine (1.8 8v mk2 golf GTi engine) but not sure if there are any differences in the longitudinal application.
Swapping to a 1.8t from a B5 Audi A4 is going to give the best bang for buck power hike.
Looks tidy though, I'd just enjoy it for sunny day cruises with the top down!
I do like the Audi 80 Cabrio. I did toy with the idea of one a while back but when the Saab vert fell into my lap I went for it. That one looks very clean and unmessed with. Any chance you can get the hood down and go the long way home.