^^
Yes, I have an LSD and the stock 2001 SE clutch. However, note that I am also on 185-wide winter tires and the stock suspension (I swap to Konis/springs and 225-wide R-Comps (yes, I use race tires on the road) during the summer).
I don't drive the car that much during winter, and it sees more mileage on the track than it does on the road throughout the year. Last year, 90% of the mileage it did was either at the track or getting to it. So, using its full potential only half of the year is still good. I'm even thinking of putting it away during winter in the next few years.
It's not a 100% dedicated track car, but almost.