Originally Posted by joseph197
What if I want to get the maximum air flow? How to obtain it? Do I have to change the over axle portion?
Again, thank you for your time sir.
Not a problem at all, that is why we are here.
If I'm assuming properly, it sounds that you already have an axle back system and want to get a mid pipe in the near future. If that is the case, then yes, to achieve the best results, you would want to get the mid pipe and the over axle piping.
The over axle pipes can sometimes be hard to come by, though. So what a lot of people wind up doing is getting a cat-back system, and sell either their used system, or sell the axle back portion of whatever system they buy.
If you go directly through some of the manufacturers, they are usually happy to sell you just the over axle pipes. If my assumption is correct, this is probably the easiest and most logical solution in your case.
I hope this helps, and if you have any other questions don't hesitate to let me know. Good luck!