I don't have a res in my SVT, When it's cold i hate it because it sounds like crap with that rasp. Once it's warm the car sounds pretty good and yes it will be loud from inside the car. Best bet is to take it off and replace with magnaflow muffler that way u get the deep sound but no rasp.

Aaron

AKA NVS SVT 98.5 Silver/Blue SVT#4553 Yeah it's modded 98 T-Red/Blue SVT Contour Totaled 06/05/06 03 3L,VCN 2000,CAT Cams,MSDS Headers w/Y-Pipe,XCal2 and lots more