Out of interest my stock Intercooler on my Ed 30 worked fine last weekend at Castle Combe....21-22 c never had any issues at all with heat soak on APR Stage 1 mapping. They seem to work well on track thus far.
I previuosly ran a Forge item on the APR Stage 3+ set up as my smaller Neuspeed item couldn't cope with trackdays and heat soak....the Forge item worked well though.