Originally Posted by m3alabama
if you are comfortable hacking up the exhaust than you should go a step further. Cut out the secondaries and cut out the primaries. Put the secondaries welded in to replace primaries and put it all back together. This should be enough to easily avoid the CEL and give you essentially a HFC setup
I was just thinking this since the secondary cats are 200 cells. i bet a good muffler shop could make quick work out of this. would it be much louder?