Which induction kit

[adamg30]

Im thinking of getting an induction kit for my standard mk2 172 so a couple of questions..
1.Do they actually make a difference?
2.If so,which is best and how much am i looking at spending..

3 questions altogther.

 

[theduck]

Best is ITG Maxogen expect to pay £350

 

[Chrisjk]

ph1 airbox with uprated filter