I have a HKS Fuel Cut Defender still boxed got it with the car when I bought it. Current engine mods: Front Mount Relocated Induction Kit Decat and stainless exhaust. Magnecor leads Manual boost controller. I do intend on getting a few other mods, iridium plugs, stainless manifold, Walbro Fuel Pump, oil catch can and possibly a mapped ecu would an hks fcd be needed and would i get any benefit from having one.