Industrial Injection's Quick Spool Compound Turbo Kit for your Cummins 3rd Gen 5.9L is capable of 850hp with fueling upgrades. They updated it from the previous version in their constant strive for perfection. This kit utilizes industry-leading turbo technology with a redesigned pipe kit to offer the easiest install with the most reliable parts on the market. There is also a new dipstick tube and a/c retrofit line, so you never have to bend or break a line again. If you're looking to lower your EGT's without sacrificing drive-ability, the new Quick Spool Compound Turbo kit is just what you're looking for.