Swapping parts? I think you’d only have to switch out the first stage if you want the additional HP port, I guess in that situation I would just sell the black and get the white.For a pretty penny, it's Apeks, you can swap out the white parts to the XL4 black parts. I priced it out a while ago and although don't remember the exact cost I do recall an abrupt increase in heart rate. It seems vanity comes at a price, well, I know it does, it's cost me over the years.