I bought my car with a JWT pop charger installed,and loved the sound. Someone on here was selling their Typhoon system,so i got it 2nd hand,though you wouldnt really know. It started to eat through my wiring loom,and on the way to Le Man,it earthed out on the metal box,and caused me to have no dash or MFD,aswell as no air con. Wasnt ideal. Its sorted now though,as ground a good 5mm ish out the corner that was tight,and put abit of trim on the raw metal edge to protect the loom.
I like the added engine bay bling of the Typhoon,just beware of the fitment issues. I dont think id buy a brand new Typhoon over a JWT,but if you see one for a good price,then its worth it.