jb4 is okay; you might want to do a flash tune to get more from the turbo + a fuel pump (if needed). no other requirement but its recommended you upgrade your cooling parts to keep up with the boost increase
I do not think you can go wrong with any downpipe thats proven to fit and comes with a no CEL guarantee. If the cats do not throw a CEL, that means they are superior quality. Active Autowerke & CG are the most popular for us because they compare to more expensive brands in terms of quality and...
Strut bars are not a product that's kept in stock, its a product sent from BMS direct.
BMS are running behind which caused a delay in shipping, we are sorry to hear that we will not be working with you again :(
Good luck with your build!
MST had a delay in their shipment due to Covid19. There is currently a wait time on MST intakes no matter where you get it from in the US.
What you are explaining is not XPH specific but applies to every dealer in the US. As you know by now if you do not wish to wait we refund your money asap...