mine was silver in it , and changed it to yellow today , seems better now doesnt boost all over the place , still a bit jerky though had it checked and seems the maf is reading low so that next on the list

ant

When i fitted my compbrake diverter valve i used the stiffer of the two springs and it seems and sounds spot on

Yellow spring this afternoon then couldn't see how it could use green when this is whats used in a mk4 150bhp?

Fitted the yellow spring and seems better to me just all turbo inlet and breather rises to fit

Just started to get a slight knock under car sounds like something vibrating somewhere but underneath if i rev it a tiny bit or move it back and forward slightly?

Check the heatshield on the cat, sometimes breaks at the bolts. Easiest solution just remove it completely

Top help dude its the heat shield crap round clips have rusted through cheers for help