hi, i have a 2001 bugeye and want to change the original downpipe for a decat but am not sure which one to buy. if anyone has any info on this that would be great.

 

Most people seem to opt for a bellmouth pipe but after reading up I believe that one where the exhaust and wastegate gasses are separated initially would be a better option. Also you'd be advised to heatwrap the pipe at leats until the section has left the engine bay area.
Some of the cheaper (ebay ones) may not be quite as good a fit as others but there are hundreds about if you search.

 

I'll start off the recommendations based on my experience with a Milltek full system.
Top quality

 

They have been building these things for a year or two so should know a little about them.

 

Hayward and Scott,Cobra downpipe are really good value for money.
Miltek is just overpriced comparing to any exhaust from range of Hayward and Scott or Cobra,and quality is its same.

 

+ 1 for Hayward and Scott