Many here have put different mufflers on without adding a tune for them. The big one that is a must is changing the air cleaner. You can go to Indian and have them add a Stage 1 tune for Stage 1 mufflers but it is not really needed. If you are planning to do an air intake soon then wait till you have that done then make sure the dealer does the Stage 1 for the intake and exhaust. Remember there are three loads to Stage 1. Exhaust only, intake only, and intake and exhaust. DeanSo I put Tab Performance BAM sticks on my CHD this weekend.i don't need to do a tune until I do the intake correct?