EMC shocks are a gas pressurised twin tube design. very old fashioned and not so great.
Spend the money elsewhere such as a Wilbers 641..... full De Carbon with remote reservoir, built to your weight. Dare I say that is fucking good value? Wish I'd waited and bought that instead of my Nitron. Way better than EMC pish. A bit like comparing Ohlins to Hagon. In fact pretty damn close. Track use you say? You do not want a twin tube shock (unless it's an Ohlins TTX, which is a totally different beast to an old fashioned twin tube).
Wilbers Sto
Jeez I just looked at the price of that EMC - 1150 euros????? You could the full spec Nitron for that money.