Exhaust - Is Corsa Sport louder than NPP with open valves??
11-18-2017, 12:27 PM
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Exhaust - Is Corsa Sport louder than NPP with open valves??
Im looking for a definitive answer on if Corsa Sport exhaust is louder than factory NPP with open valves?? No guesses here please, looking for answers from those who have done them, specifically to their C7. Thanks!
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