RJS5689 Posted May 11, 2010 Share Posted May 11, 2010 My head is spinning with facts and numbers from STI transmission parts and Spec.B transmission parts. I want to make sure I have all of my information correct before I decide to place any orders. I realize I can use the same clutch and pressure plate that would fit an STI, but I learned that our flywheels are actually slightly different.. So far it looks like they are just different weights, but are both single-mass units according to this thread here. According to the Subaru factory service manual I have for the Legacy, it says that turbo models have a dual-mass flywheel, it does not differentiate between GT and SpecB, and Car101 lists it as a dual-mass also. Can anyone tell me for sure what the factory flywheel is? Anyway, I'm assuming I can also use any flywheel intended for the STI? If that's the case, is it worth just going with a factory STI flywheel when I replace my clutch? Or could I have mine resurfaced because it is a single mass unit? I don't think I want to go with a lightweight flywheel, as I have read they're not really worth it in a daily driver. The STI flywheel would lighten things up just a little bit (I think), and also be about $200 less than an aftermarket lightweight unit. Any opinions? Link to comment Share on other sites More sharing options...
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