At our last club meet, carolina dsm, I noticed how different the exhaust note is on the 4g63's from our 420a's and was wondering if your exhaust note changed any after you guys went turbo. I know its not technical, etc. but I was just wondering

Of course it changes....turbo cars have a quieter exhaust too because it has a restriction (turbo)

yeah man i love my exhaust tone on mine after i installed my turbo...compared to when i was using a header long time ago. especially when you're revving your engine it sounds even cooler with the blow off valve. everybody in the street gets intimidated when they hear me. but you'll notice a difference, it sounds better. you have to hear it to understand, but trust me it's cool as hell!