Just purchased a drz with almost factory exhaust. It has a new free flowing tip and spark arrestor. I'm about to do a 3x3 mod and rejet it. Is the new tip going to flow enough to make a difference, or do I just need to go ahead and buy exhaust. My last drz had a mrd exhaust and it was a power house but way too loud for me. Is there a substitute with good power but not quite as loud?
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