any advice on making the 1.6 tdi sound better?

I have always wondered this too!! It looks like you can remove the backbox and it gives a little bit more of a raspy sound and you can hear the turbo spool but no one makes a dpf back exhaust. someone on here has had a custom backbox delete and it cost a couple hundred £££. 

 

 

they do sound a bit fart can though!