to be perfectly honest, I have no idea. Since it has been over a year since I drove it I have nothing to compare it to. a buddy of mine has a stock one so after i get all the codes fixed on mine, I am gonna drive his and see if there is alot of difference.
I didn't watch that vid to the end the first time... When you take the camera out near the exhaust it sounds a lot more like I would expect it to without a nasty cam in it. That last video just did not seem right, lol. Glad you got it running right