20% is not bad..........
Peter - I was contemplating a neoprene seal at the bulkhead, because you can see where the water has collected under the ecu. I'm also wondering about covering the 'cover' with 'Reflect-a-Cool' to reduce the ingesss of radiated heat, since the exhaust is on the same side.
PS Two heater drains right next to the box isn't a great idea!!!
