Ever thought of putting on a KMS turbo system (Bolt ON, no Mods), it's very reliable. I started off with one and was running 42 hp. You can smoke a stock raptor with pipes, or a DS650 with pipes, with that system. Now I upgraded with an innercooler and fuel injected system and turned it from 6 pounds of boost, to 12. Working on the nitros system this week (I know you don't like it, but it works well).

If you want to know where to get the system, call Garret turbos and ask them where their closest dealer is.