I went for mid-range to top end, 2 1/4 straight thru with a good flow central muffler and no ressie. 3 inch tip also. Mine is singing at 3,000rpm and screaming at 6,000 with virtually no drop off all the way until around 6,500 when it's time to change. I have some videos to display it in action that have been hidden from the public until now. Guess I'll have to post them up... you want popping and raspiness? Then hold onto your hats...
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