If i get a dyne tune with a log mani flanged for 38mm wastegate and later on decide to upgrade to a tubular mani with a 44mm wastegate will it affect the tune in anyway. Im thinking the wastegate size wont affect it but the mani might because of the flow of the exhaust gas. Anybody have input on this?

 

I believe it would be worth a dyno tune for more power and the turbo would spool faster with the tubular mani. A re-tune will be half the price usually

 

ask this question in the forced induction btw

 

Ok, thanks