i've got a round tube 6' magnaflow coming in the mail which goes on the 300 next week. i'll let you guys know how it turns out.

but a question. if i cut the 2nd cat off and go 2.5" pipe from the 1st cat to the tailpipe, will i lose low end torque or will torque move up the powerband or whatever?? or should i just leave the 2nd cat alone??

 

thanks for all the help everyone!!! the muffler goes on tomorrow, so any input would be great. if not, i'll try to post a sound clip anyway for info on here.