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Old 07-12-2017, 08:39 PM   #6
CamaroCasper
 
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Drives: 17' Summit White 1LT NPP RS M6
Join Date: Jul 2017
Location: California
Posts: 21
Good info here ���� I'm wondering the same thing. Basically wondering if it would make a sound difference if I keep the NPP suitcase muffler on for now. Eventually wanna upgrade to Borla or some sort of other axle back, but for now just wanted a change in tone. Although the more I drive the more the NPP just sounds great for now. Idk, if it's worth it. But still a thought on my mind.
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