These are custom made aluminum tanks that can hold coolant, water, or fuel and can be used for engine cooling, intercoolers, or fuel cells. I can make any design tank you want, I just need a sketch emailed to me. I can also provide you a DIY kit with all of the pieces you need pre-cut so you can weld it together yourself.
I also have cluster bezel plates for the 99-06 GM trucks that will the RacePak with 0, 2, or 4 standard 2-1/16″ gauges. I also have one that will work with the large Holley gauges and 4 standard size gauges.