Supersprint or Neuspeed Exhaust

[RedlineMotorworks]

Hey everyone,
I'm in the market for a turbo-back exhaust set-up.
My shop can get me either neuspeed or supersprint.
The only difference I know of is quality (Supersprint > Neuspeed), but does anyone know the difference in gains or loudness?
Thanks

 

[Vivid]

Last time I spoke to SS they were not going to have an exhaust for the MKV until fall of 06... Not sure about the Nuespeed... Consensus it that both of these options are very expensive and not worth the extra money (close to double the price) when compared to Miltek, APR, Techtonic and GHL