My all time favourite type of MK2 - a 2 door running a real turbo diesel motor. 300hp with 60 mpg, doesn't get much better than that.
Love your work.
Have you allowed enough flex in your pipes to allow for engine movement and vibration? From this picture it looks like you'll be wearing out something soon.
http://www.vwwatercooled.com.au/foru...u4y7pm5l-1.jpg
Cheers
Paul