Today I installed my new SS Long cannons on my 2006 TBA, I also have a K&N drop in filter and the Snorkel is removed, The Air Injection is also removed. I did not do any rejetting to the carbs. I took the bike out for a couple of rides and it runs flawlessly. There was no backfiring and there didn't seem to be any flat spots when hitting the throttle, the bike sounds great. My question is this, Is it going to hurt anything if I don't rejet the carbs?
