Z32s respond very well to lightweight flywheels. Every vendor on earth sells one for about the same price. Also through my years of working on these cars I am convinced (though I have no empirical data) that they are made in the same foundry facility and then just sold to EVRYONE (including ebay sellers). For a clutch I would recommend DXD southbend, they will be the best and cheapest for what you need. There are multiple threads here on NICO where I and a few other members have gone into great detail about clutches so if you're interested you can search. The gist is there are only like 3 or 4 companies in the world that make proven clutch components, all of the brand names you see buy these components and match them, some actually replace the friction material with something proprietary but for the most part its Valeo, Daikin, Exedy, and I think 1 other manufacturer. Any reputable brand will sell you what is likely the same clutch as another reputable brand.