I recently purchased a PM2 without the elbow and will be buying an adjustable one. The seller is asking at what pressure should he set it at? I have K&N and 5" but no gauges (YET) with stock turbo/fuel system/etc. Yes, my truck IS a timebomb waiting to explode I know that but I want to play NOW!! I purchase the truck 4 months ago with an extended 18 month/18000 mile drivetrain warrantee that covers EVERYTHING except the clutch. I just need the recomended pressure for the boost elbow with a PM2. Thanks!