Originally Posted by J1mbo

in awsner to your question im not sure, i would guess to releive the system of any restrictions, and probably reliability ?

as for my defence, with a yb and in my (little) experience there just isnt a need for them untill you cannot keep a turbo under control with the internal wastegate set up (im talking about turbo's like t4's, you get boost creep)

also the cost invoved in the external wastgate setup, were talking about a road car here i guess, so if its not needed then why bother ?


just my opinion

so, would you use a external wastegate for 400hp ??