Banks Power Boost Tube Kit Natural Finish Tubes 13-18 Ram 6.7 Driver Side Cold Side Only Banks PowerBanks cold side tube has up to 67 percent greater flow area than stock tube. Produced from high quality aluminized steel, our tubes are mandrel bent for constant diameter. This increases performance by allowing quicker turbo spool. Better flowing intercooler tubes improve retention of boost pressure (increases density) between turbo, intercooler, and intake resulting in maximum horsepower. Our natural finish tubes give you the freedom to paint or