MojoMan wrote:It does flow less than the walbo but is much quieter. It doesnt cost 400
WRONG.
It isn't possible for the Z pump to be quieter than the Walbro. You cannot hear the Walbro.
The Z pump is loud from what I've heard from a dozen or so people.
But honestly, who really cares. Like I'm going to complain about the sound my fuel pump makes while my tires are making a cloud of smoke around a curve or being pushed back in my seat getting on an onramp at 1BAR of boost.