SPP has been taking care of the community for a long time now, there is no reason why they would delay your order.
Delays are standard in this industry. Supreme does not make the KWs so give them a break
You should check with KW to see if they have an update, surely they know if there is delay or not.
If the kit is sitting on the shelf at KW then I would be pissed but if it's backordered then the wait it on.
RD Sport Pulley, afe dry filter, KW V3