Greetings. I have a bone stock 2012 xB 5-speed. I took it to a shop for a clutch on the recommendation of a friend. Owner gives me a quote up front for the clutch job of $450 parts and labor if it's a conventional flywheel, but more like $950 if it's a dual mass flywheel. Well, $450 sounds crazy cheap to me. Even $950 sounds a bit low. Anyway, his guys checked it out and he says indeed, it is a dual mass flywheel and it needs replacing and the only decent option is OEM from the dealer, $450 for the dual mass flywheel. So, it'll be about $1,000 total out the door for the clutch job. I have no problem with the price. But what the heck is a dual mass flywheel? I've looked up flywheel replacements and indeed, OEM is $450-$500. Says nothing about it being dual mass. I also find tons of aftermarket flywheels for this specific car for as low as $75 plus shipping. I looked up dual mass flywheel on the wiki and the images there look nothing like the ones I found for this xB. The dual mass looks way more complex while the OEM looks pretty basic. Any input on this would be appreciated.