Actually it will sound a lot different. Just like the 3100 SE's sound different than the 3800's.
Truth is straight pipes on a 3800 are gonna sound like absolute crap, I don't care what it sounds like in the videos you've watched on YouTube. You've told us 100 times how you're going to put straight pipes on your car but you keep making these threads asking us what you should do and when we give you ideas and tell you not to do straight pipes you ignore us and go right back to your original idea.
I've said it before, DP and no muffs with everything else intact sounds great. And by the way, I'm 17 and I would never want my car to sound loud and obnoxious so I'm not sure exactly what you're trying to prove about age there.
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1998 Pontiac Grand Prix GT
WizAired CAI, Impala 12" Brake Upgrade, ZZP Alternator Rewire and Voltage Booster, Rotated Dogbone Mounts, Kicker KS690 6x9s, JBL GTO427 4s, JBL P652S 6.5s
2001 Ford F150 XLT SuperCab
Stock, LineX, 212K