OBS 95 CHEVY 350 vs 2000 Sierra 5.3 LS Which truck sounds better??? 🤔 

Details for the trucks are as follows:
95 Chevy K1500 factory 350 with headers, 3" exhaust, and a Flowmaster muffler (2 in, 2 out)
2003(not sure on that. not my truck) GMC 1500 SLT 5.3 LS stock with Flowmaster mufflers as well.