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  1. Steel Flywheel SPEC Propietary Clutch Kit Combos are Now Shipping!

    Considering it's only 7 lbs lighter than stock, is that enough to make it noticeably more free-revving? Or does being heavy enough to avoid drivetrain noise mean sacrificing most of the benefits of a lightweight flywheel?
  2. SPEC Clutch Proprietary Clutch + Single Mass Flywheel Combos are now available to order!

    @Two Step Performance So I know you recommend the stage 2+, but is it really necessary considering the regular stage 2 is already good for 399 tq (~340 wtq)? The most I plan on doing is downpipe and intercooler, running 91 octane (already have Cobra intake and ktuner). I'm pretty sure that...
  3. SPEC Clutch Proprietary Clutch + Single Mass Flywheel Combos are now available to order!

    Lighter flywheel does put more stress on transmission, no? At least in aggressive driving situations. Because there's less dampening in between, doesn't that mean it transfers the power more abruptly?
  4. SPEC Clutch Proprietary Clutch + Single Mass Flywheel Combos are now available to order!

    Any chance of some kinda group buy deal for clutch + steel flywheel ?
  5. SPEC Clutch Proprietary Clutch + Single Mass Flywheel Combos are now available to order!

    PRL intake + intercooler + downpipe w/ KTuner 23 psi on 91 octane. That shouldn't exceed 290 wtq, right?
  6. SPEC Clutch Proprietary Clutch + Single Mass Flywheel Combos are now available to order!

    I've been very hesitant to settle on a clutch, even though my stock one is already slipping. Seems like SPEC Stage 1 with 23lb steel flywheel could be exactly what I need.


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