Gav, most of these weights that people have put up here are for 5 speed flywheels, which by design will always be lighter than a 6 speed flywheel.
I have a brand new sti chromolly lightweight 6 speed flywheel to go into mine with a jim berry clutch, when I do the engine swap back to a 207 and go away from the carbon fibre twin plate.

I would recommend a japanese brand over any others, a jun lightweight like stace said or a sti lightweight as examples.

check out japanparts, nengun, perfectrun etc for prices

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Is this one okay, or too light??

http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWAX%3AIT

Is good for a 5MT, Stacey etc seem too think a bit too light for a 6MT.

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running a jun fly wheel in the race car, has been there for over 2 yrs now, copped a pounding and hasn't had a single hassle, its onto clutch number 2 as well..

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Jesus Built my car, Its a love affair, Mainly Jesus and my hotrod

Gav, Ron has a fly/clutch set-up just removed from his car as is "may not" be up to 500+hp and smassive torque, nothing wrong with it and very nice to drive.

Its a ~6kg crome moly flywheel and 9 puk ceramic set-up, give the big fella a call