Probably the hard to find muffler bearing pullers, I've had to make my own but it doesn't work as well as I'd hoped. It sorta boogers up the end of the tail pipe, I've found some tubing I can stick unside the boogered ends then tap on it with a hammer to make it round again. Yeah, you can just cut them off, but then you have to put an extension on the tail pipe and that's just another place for it to leak exhaust, unless you can weld, but even then moisture gets between the pipes and it eventually rusts out, that is unless you replace the muffler bearings every 12k-15k as the manufacturer suggests, but I think it's like a automatic ****** flush, no one ever messes with it until there's a problem.
I've seen one car that got them replaced regularly, but they kept putting more extensions on it, it had like 6 stacked up on either side of the muffler, and the problem is, on some vehicles (this was an extended cab full sized pickup) the piping gets convoluted because of the turns and twists you have to make. Even worse is when you take it to the dealer, if they can't pull it and save the pipe, they replace whatever tail pipe you have before and after the muffler.
If manufacturers would just get rid of the stupid bearings, they'd probably save owners a lot of money and grief. Of course, you can replace your stock muffler with a glass pack or a Flowmaster or some other aftermarket muffler that doesn't use bearings... why is it that the aftermarket doesn't use bearings? is it an EPA thing that the manufacturers have to comply with? I wonder if that's why they put the ricer fart pipes on cars, they're tired of dealing with the muffler bearings...
