Wow, I have a 23 Chief ABS with Indian Stage 1 intake and FP 2 into 2 shorty exhaust. Same setup as you!! I was thinking about a Lloyds tune. I have an authorized dealer 1 hour away. I have lots of popping. I called Lloyds and they said their tune would make my Chief run much better but the popping is caused my the FP exhaust and their tune will not eliminate it. I am still considering it. Dealer said about $500.00 plus 1.5 hours shop time. Expensive. Keep me updated please.