so i went to a local meineke to get an estimate for exhaust which they said it would be 450 for it all plus how ever much it costs me to get my magnaflow x pipe. i was wondering is this a fair price? also, where could i buy a magnaflow pipe online, and if yall cut ur rear bumpers, how much was that. in case yall are wondering im getting msps type exhaust ( flowmaster 40s n magnaflow xpipe). also anything else i should know before getting this done?