Couldn't you just unbolt the exhaust from the axle and get the same effect?
Havn't looked at the underside of my car in a while, so I don't know if it's straight back to the axle.
uh..it sounds just as if the muffler was unbolted..but not very safe if you gonna do that permanently. and no the kazuma pipe line duzen't align the same as the stock pipe. the shop had to add a lil extra pipes to mine to get it back to stock because i wanted to use the down pipe...duz that make any sense? i dunno gotta get to work.