Mike is right. ecat.......com beat Fastlane's prices, so far, (for my e320) by about a 100 bucks, each cat. But, they also recommend replacing the 02 sensors (I would need 4 @ $103 each) whenever replacing the cats. I've yet to buy anything as the car is going in for service (and opinion) tomorrow. I guess I'll know more then, even though I'm preparing for the worst after some preliminary discussion with one of the techs kinda points to the cat(s) being toast. And, like you, I don't know whether this old body can take crawling around under this car to do an exhaust system job. I gotta say, I've just about had it with this benz. My '88 S-10, that never gets any attention, (periodic oil changes, never bathed, beat-up, stinky, and rusty, and pretty much just a dog hauler and drag my sorry ass to work) for the past 6 years, hasn't treated me as bad as the benz (personally or monetarily). I wonder if you could disconnect the mufflers and then just ream all the crap out of the cats? Just a desparate thought.

Dave M