james_birch,
sorry james... missed the boost question!!
We have pressure tested the coolers to 100psi on development.... so basically they will hadle watever you can throw at them!!!

We have one left at the mo and we may have sold that one this morning...waitng for confirmatiom.... we probably will be coming in over christmas to finnish another batch if need be....
remember, we will hold these prics on all orders recieved before christmas