Prothane Polyurethane bushing kit, stiffens things up a bit. 
 
Some like them, some don't. I prefer the solid TT bushings over these and wouldn't ever use the stock bushings.    That's my opinion, you do what you want. 
 
Fits
Volkswagen
Golf TDI MkIV (A4 chassis) w/ ALH Engine (1999-2003)
Golf TDI MkIV (A4 chassis) w/ BEW Engine (2004-2006)
Jetta TDI MkIII (A3 chassis) w/ AHU Engine (1997-1999)
Jetta TDI MkIV (A4 chassis) w/ ALH Engine (1999-2003)
Jetta TDI MkIV (A4 chassis) w/ BEW Engine (2004-2005)
Jetta Wagon TDI (A4 chassis) w/ ALH Engine (2002-2003)
Jetta Wagon TDI (A4 chassis) w/ BEW Engine (2004-2006)
New Beetle TDI (A4 chassis) w/ ALH Engine (1998-2003)
New Beetle TDI (A4 chassis) w/ BEW Engine (2004-2006)
Passat TDI (B4 chassis) w/ AHU/1Z Engine (1996-1997)