Porting

[Will]

If i ported my throttle body to a bigger diameter will it make any bhp gains also same question for the inlet manifold.

 

[Tom]

Most likely you'd lose BHP.

 

[donny lad]

what ive done mate is for forthcoming tuning.

like tom says it may even loose powere, th einlet should be done by a profesional cos you need to make sure the airflow inside is perfect for max perfomance etc and the is done by flow testing etc. i looked into it and its pretty complicated stuff lol they only recomend it for big power tuning.