My 2002 Z28 passed 100k miles this year, and is still on the original LS6 clutch. I've heard that these sometimes last beyond 150k, and I won't replace it until it's slipping, but when the time comes I'd like to be prepared. I don't care much about what's cheap. I care about identifying the right components for my plans, and then finding a good price on those.

* I intend to add a significant amount of horsepower (targeting 450-500rw) before it's time to replace the clutch again, so I want to focus on high performance options.
* My wife and I daily drive this car (and yes, she can be trusted with that level of horsepower), sometimes in traffic, so I don't want a heavy or grabby clutch. I'd like it to be as close as possible to stock feel.
* I occasionally go racing (drag and autox), but just for fun.

Given those requirements, I feel like a dual-disc clutch would be my best option. I'm under the impression that all of the high-performance single-disc clutches are really grabby and result in very heavy pedals. I'm interested in additional opinions here.

In the past, I had my sights set on a McLeod Street Twin with their adjustable master cylinder -- ballpark $1700 including an aluminum flywheel.

I've now learned that Katech makes a flywheel that would let me use the LS9 clutch. They have two versions, the cheaper of which holds over 700hp and is $1850 for a kit with the flywheel, clutch, and an adjustable master. Initial feedback on these is that it's barely heavier than a stock LS6 clutch and grips so well that you'll think the original was slipping all along.

I like the idea of getting an OEM component like the LS9 clutch; I'm generally of the opinion that in terms of overall quality and longevity, OEM stuff used for its intended purpose is the best option.

Are there other clutches I should consider? Exedy has a dual-disc kit too, but I don't know a lot about their reputation, haven't heard of anyone using it, and it's really expensive.