was ist throttlebody? 
i can english but i can not talk about cars 
throtthlebody id Drosselklappe
Zitat:
what do you mean by classical tuning, tell me what to change
) You can polish the intake tube 
Andso things... I dont can explain thissogoodin english
Erklärtsichmit dem bildvon selber I dont understand ,when I take more valves? or more horses?
What should I do to the pipe?
No Bigger
Youcan "polish"it, when the unevenness aren't there the ait could flowing better to the cylindersandyou have a better charge!
My english istoo bad to explain this shit
stefano th choice is, to look for parts in the same year of bilding from your car. You may have problems with your valves and camshapfts but there was a revision from VW an this zylinderhead and the changed parts from the valve train in german caled schlepphebel and they add them if you have this second stage from VW the opportunetys for changing without demaging to the engine wil be limmited. but you can take each throttlebody from VW with egas the four screws have to fit on vour airbox and the tube from the airfilter on the Throtlebody then get the upgreade to the GTI software on your engine management and voila there are more horses but don't vorgett to customize the fuel pressure. fou can facilitate your flyweel to get better throtle response.
a fuel cooling system for the summer could bring you more PS too.
hi zamy, I did not understand the second chance.you can explain it again?
