PVT already had a dual-fan heat exchanger, so we used its existing wiring. That certainly expedited the install, but the Steeda kit includes a really slick plug-in harness, which grabs the pump signal to trigger the fans. With this harness, no wiring tapping or splicing (like PVT’s prior harness required) is necessary. Having the plug-in harness is a really nice feature of the Steeda kit. And if the sound of the air rushing through these fans is any indication, they are really moving some air.