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I'm an UpRev Osiris Tuner owner. Idle is typically 650-675 RPM (OEM), and can adjusted up or down up to 250 RPM with Osiris Cipher. The general consensus and advice from UpRev has been there is no advantage to raising the Idle aove OEM level. It will burn more fuel of course, and add heat to the TQ under idle. Drag Racing does not gain, as Power Braking is used. I have read several years ago of some Titans needing Idle adjusted after the Timing Advance was done, but I've done well over a hundred TA's and never saw it change. WOT removal is the biggest gain for Street Performance, not raised Idle.
 
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