🔥 GMC Sierra 2500 HD — 6.6L V8 Gas Rumble Upgrade! 🔥 This clean GMC Sierra 2500 HD rolled into AutoWorks with that big 6.6L V8 gas engine, and the customer wanted the perfect balance — not too loud, not too quiet, just a deep, confident rumble. 💪🔊 We hooked him up with a Flowmaster 50 Series HD muffler, designed specifically for heavy-duty trucks. This setup gives the Sierra: ✨ A smooth, deep tone without drone ✨ Better exhaust flow ✨ A richer idle rumble and a punchier sound under throttle
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🔥 GMC Sierra 2500 HD — 6.6L V8 Gas Rumble Upgrade! 🔥 This clean GM…
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