That is a very poor assumption to make, It is far more likely that you are boosting higher on the road than you were on the dyno. All gauges will have some amount of error, but not 6psi. Better check your boost.

 

i had the same problem but came up with an easy solution. if the demand is there i can make a how-to for the 2011's.

 

Not a super fan of the loss of visibility of the speedo and tach with the gaugepod in place, but it is a pretty clean install.

Look for either visco-elastic sheet or a product called Sorbothane (low durometer polyurethane) to take the rattle out of the gauges and pointers.

 

I have to agree with some of the mixed reviews. I bought the Boost, AFR, Water Temp, Oil Temp, and Oil pressure gauges. THey look ssick!! However the swiss step movement can be heard all the time. If you turn on your ignition all the way with out starting the car, upon completion of the opening ceramony all the warnings come on (like it should) but when you then start the car the keep blinking and beeiping! They also change color on thier own when the car is stalled out or the prevouisly mentioned happens. The other problem i noticed is the Water Tempature is 20 degrees below what my Cobb access port reads. So how knows. I do love how they look and that the "Red" color matching the red of the OEM lights.

 

I jest installed a ProSport Boost Gauge in my buddy's EVO 8 and I'd have to agree that they are pretty spot on. I enjoy the fact that you can color match them to your factory dash and you can't beat the price. I'll give it this, it was significantly more accurate than the factory MR gauges that came factory on the car...lol