When I bought my SRT-6 I could here the SuperCharger often. Now it seems the car is slower and I don't notice the SC sound as much if ever. It's under warranty and bone stock. Any ideas of what I should ask the dealer when I take it in? Can I take it to a Mercedes dealer under my factory warranty?

Does anyone have an after-market boost gauge and if so, any pics of where you mounted it. What kind, size and so on.

Thanks,
HKP