Even if the car is not running rich + if it is running exactly right,once you take off the cat ,you are going to smell exhaust fumes, because it's now putting out straight exhaust with no filter,The cat is a filter that cleans up the exhaust.
It's just the worse your tune is ,or the richer it is running the worse it is.
There is also the factor of how much you drive it. If you just take it to shows or for the occasional blast ,you may not find it to be a problem,but if it's your only transportaion,you may find it to be obnoxious after a while.
If your car is in pretty good tune + not running extra rich, + you have a good full exhaust, you prob won't smell it while driving too much or at all,Mine was just very rich at first,+ was terrible,but wasn't as bad after,but still had some smell.
The fact that the exhaust exits out the side not too far from the doors doesn't help,if someone gets in or out of the car while its running it tends to pull the ehxaust in the car,more then if the exhaust exited out the back like most cars.
But it's inevitable remove the cat or cats on any car your exhaust will now be raw unfiltered exhaust + smell as such.