Weld on some new tips
Or even better get a switchable performance exhaust. I expect a 5.0 sc v8 to sound epic with a decent exhaust..
The tips being dirty are just the excuse you need!!
Car: 2010 Jaguar XFR (Cat-back exhaust)
Gone but not forgotten: Highly Modified E90 335i LCI M Sport Manual (circa 480BHP/500lb ft)