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I have the option of buying an NPP system off of another 1LE owner for $100. That seems like a great deal. Shipping would be extra of course. I just don't know if that is the best next step. Should I be looking at putting that money, plus the cost to do it, towards something that will impact the performance more? I was really looking forward to having control over the volume of the exhaust. Any NPP owner opinions on that?
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