Have a 2005 crossfire limited w/mercedes engine. Need a new catylic converter (left side) original part will cost $1600 found one on-line for $475. Is there any difference and if so how would it effect the performance
It may or may not work. I'm not against aftermarket converters. Some work and some don't but as long as they are bought and installed locally, somebody is responsible for them. Buying something like that online can be very risky. I would contact a local exhaust specialist like Midas or Mieneke and see what they quote you.