Originally Posted by
nipagu7
yeah , people on 33's say there speedo is almost spot on by gps ( crd's ). my scangauge boost peaked at about15-16 psi until i installed a dawes and needle valve setup to take control of boost and spool rate . search around the site for installation info with pic's , diagrams and setup info . once you get your head around it it's easy to do. the obd readers are good to have as backup for the stock gauges plus you can read and clear codes but unfortunately nissan does not allow much access .