Volkswagen corrado TECH????

Hi great to join and hello to everyone, ive just joined today and i need some help with my 1992 volkswagen corrado g60. I was wondering will a 50mm dohc 16v polished inlet manifold fit on my car as the one i am thinking about buying is different to what is on my engine now!!!!!!.
 
Also does anyone know how to or a good place to get more power out of the engine and supercharger????? dont want to spend big bucks i have around 2000 pounds to spend on engine and supercharger work.
 
Unfortunatly last week one of my springs broke and i want to do a complete and utter suspension over haul. i am looking to drop the ride height and want to get stiffer suspension anything good out there guys?
And finally my exhaust has holes in it and i was wondering are there any really good systems out there worth mentioning,.....
 
Thanks all help will be a big push twards getting my perfrect car
 
Thanks
 
Have a good time

get new springs and shocks drop it and put a strute brace in first  then supercharge it