Quickboost recently released a set of detail parts for the 1/72 Tamiya P-47D that shows their unique focus on accuracy. Set QB 72 282 provides model builders with a pair of oil coolers that will not only add an often-overlooked detail, but also correct a distortion that is molded into the kit fuselage parts. Tamiya’s practice of simplifying kit construction usually leads to molding as much detail as possible into major parts. This sometimes leads to less than perfect shapes here and there (such as those oval shaped rivet depressions along the mating surfaces of both fuselage halves).
The oil cooler louvres molded into the kit’s fuselage halves are incorrectly angled upward so they will release from the molds. This inaccuracy becomes very obvious when the kit's parts are compared to the Quickboost replacement parts (as shown in the photo below).