Been throwing the idea around, the whistle is starting to grow old to me and I'd like to squeeze more power out of the old girl. But I'm curious how like an s300 is to cruise with. I've heard s364 is a common charger that people run? Would 175/30s on a s364 be a match made in heaven? I need new injectors anyways so I'm about to pull the trigger on 175/30s and I'll need more air.