I've been looking at aftermarket EGR coolers (I live in Mass). I've found bulletproof diesel ones for $1185 plus $100 core charge for both coolers. Then I Found these by bostech Ford Diesel EGR Coolers - Injector Warehouse.com for $800 plus $200 core charge for both. I was wondering if anybody has had any experience with the bostech coolers? cause I wouldn't mind saving $385 if the quality's there