K11 exhaust options (Help!)

Looking to free up some of my k11 exhaust, but dont want to shell out the huge costs of custom fabricated systems
is there any cheaper ways of making it a little lowder
and freeing up some ponies, if any are even able to be released
for example, stripping an oem backbox of all its baffles and packing to make it louder
and removing the 2nd cat, and welding a pipe between the flanges?
or does anyone know about the mani cat
if anything can be done with that
 
Back
Top