I've been thinking about changing the exhaust on my BF Falcon ute to hopefully make just a little bit more noise, because at the moment its pretty silent, which is nice, but I'd like a change. I don't want to do anything to drastic as my plan is to sell the car in a few years.

Anyway, I've been looking online and struggling to find a catalytic converter, so my plan is to remove the exhaust after that, however there is what I believe is an O2 sensor almost right before the first "muffler" (I put that in brackets because I'm not 100% positive thats what it is). I want to lose the "muffler", but I'm not sure whether I can without losing the o2 sensor. So, does the position of the sensor have to be exactly where it is, or is there some wiggle room?

Thank you