Its not a leak, i can sit inside or stick my head under the car and listin to the long tubes each side has a tick in the exhaust notes, is this normal or is it a miss or what causing this noise!

 

My LTs do that also. I think its just the air in the tubes. I have gotten under there and I cant find a leak so I just figure the FLPs have thin wall tubing and you can hear the air hitting against the tubes?

 

Mine makes the same noise. Kinda like a really faint exhaust tick.
I always just assumed it was the "LT1 tick" that everyone talks about. I've always had this sound but when I got longtubes it seemed to become a little quiter.