New Turbo Intake Pipe Question

[boostn0199]

Putting a gt3076r on and the inlet size is 4inch and im wanting to use the stok intake pipe so im thinking of using a 2.5 to 4inch reducer and sticking the stock intake pipe on , will the reduction affect performance or not realy since it is still sucking air into a 4inch outlet?

[DRD-00F]

yes it will reduce it, but it depends what kind of power you're aiming for...

what's more important, is which sections of the standard intake piping you're planning on using. The rubber part just infront of the turbo can be sucked in on itself if there is too much negative air pressure. I've run a bar on my standard turbo and haven't found a problem, but the bigger intake on the 3076 would most likely cause this.

[boostn0199]

yes it will reduce it, but it depends what kind of power you're aiming for...

what's more important, is which sections of the standard intake piping you're planning on using. The rubber part just infront of the turbo can be sucked in on itself if there is too much negative air pressure. I've run a bar on my standard turbo and haven't found a problem, but the bigger intake on the 3076 would most likely cause this.

so what should i do. is there anyway of making the stock intake pipe work or do I have to get another pipe