Yup, sure can. From the readme in the zip file: General replacement texture is of the form GameData/TextureReplacer/Default/[<subDir>]/<internalName> where `<internalName>` is the texture's internal name in KSP (plus .png/.jpg/ .tga/.mbm extension, of course). The subdirectory is optional. Examples: GameData/TextureReplacer/ Default/kerbalHead // Default Kerbal head Default/kerbalMain // Default IVA suit (veteran/orange) Default/kerbalMainGrey // Default IVA suit (standard/grey) Default/kerbalMainNRM // Default IVA suit normal map Default/kerbalHelmetGrey // Default IVA helmet Default/kerbalHelmetNRM // Default IVA & EVA helmet normal map Default/kerbalVisor // Default IVA helmet visor Default/EVAtexture // Default EVA suit Default/EVAtextureNRM // Default EVA suit normal map Default/EVAhelmet // Default EVA helmet Default/EVAvisor // Default EVA helmet visor Default/EVAjetpack // Default EVA jetpack Default/EVAjetpackNRM // Default EVA jetpack normal map That's an awesome helmet, BTW.