Exhaust leak?

[Crusader]

Oh yeah I remembered one more thing that kinda bothers me about the car. Sometimes when I take off the exhaust gets REALLY loud, sounds like a moto-X bike with a H-6 ... if you can imagine that. As I said it only does this sometimes, also it only does it at certain RPM's(around 2k and then again somewhere between 3k and 4k) I was thinking that it is either a leak in the exhaust system or maybe a loose hangar or guard/cover. I am not really familiar with the exhaust system and haven't had the chance to put it on a lift and check out the underside personally... (so don't laugh at me if I make no sense at all, at least I have enough sense to come here for my advice) as usual, any input would be greatly appreciated and I thank you all for taking the time of day to care.
---MIKE---

Have your center resonator checked. This is a common problem. Just have a shop cut it out and put a pipe in, and you will be good to go!

-Mike