For argument sake has anyone ever heard of proven results from adding a fuel cooler to a automobile? The only thing i'm turning up is the idea was originally based on preventing vapor lock in older carb engines and it's less common in FI cars we drive today. Vapor lock - Wikipedia, the free encyclopedia But i also see things like this Skunk2 Carbon Composit Fuel Rail - B-series - JHPUSA claiming a hp gain from cooler fuel rail. And then there's this sketchy dyno i found. VWVortex.com - Fuel cooler dyno #'s Thoughts?