Ok folks the debate begins here.If i have for arguments sake 300bhp on my pump GIAC map and i have no mods at all, everything OEM.
If i add a perform panel filter and then a milltek system am i gonna see gains, you would say yes

if same again on race map you would expect again to see gains?

??
whats says you lot? as i am going to experiment, 1st tommorrow on pump map going to vagcom mand measure blocks to see whats happening then add a panel filter then measure to see air mass etc..