I think all of us are aware of the dubious plastic parts VW uses for its coolant flanges and thermostat housings. (VR6 owners also have the vulnerable Crack-Pipe and Y-pipes. )
I've found VW alternatives made from durable aluminum sourced from VWs of the mid-80s era to replace just about every plastic flange on our G60 motors--with one exception. That is the Coolant flange on the front of the cylinder head. This cheap plastic part costs $11.00 new and serves as the mount for the two coolant temperature sensors. It's right up front in the engine bay and is an easy replacement.
However, my complaint is that, like all other VW plastic parts, this item warps, cracks, and inevitably leaks. I end up replacing this hose flange once every 2-3 years. I'm tired of it.
The part I'm referring to is circled in the illustration below
So I'm reaching out to gauge potential customers within the corrado community to determine if there are enough G60 owners interested in a permanent alternative made from Billet Aluminum. This would eliminate the potential for a leak from this vulnerable part for the remaining life of your motor. And for the visually conscious, it would dress up the engine bay because this part is up front and center when you open the hood. According to Paul at GruvenParts, the estimated manufacturing cost for the part would be roughly $150 each for a run of 20+ parts.
Any G60 owners interested? Let me know
Regarding plastic parts, once while driving in downtown Los Angeles, I experienced a plastic part failure at the worst possible time and place. The plastic radiator neck cracked leaving my corrado stranded. From that experience, I eventually replaced that frail radiator neck using a Billet Aluminum piece from the GruvenParts. The $94 part eliminated ever having to deal with that part ever again. This is what the aluminum radiator neck looks like under the hood.