Is it only the speedo and odometer or is there something else? What's the cheapest way to reclibrate them (besides paying another $150 to Ed Wright for an upgrade). I've just installed my 3.42's and the speedo is way off.

 

Another option(not saying its the best) is SLP's speedo recalibrator, Im not sure how much it costs though...

Your mph shifts will be off also since you have an A4. Once the gear change is made in your program the shift mph's change along with it automatically....

 

The easiest way I know of is to get the SLP recalibrator. Last time I checked they were $175 at RKsport.com I think Thunder Racing has them also. Should be a peice of cake to wire

 

I think pcmforless or Madwolf would do a speedo recal for $100 or less. You could always buy a used HPP. You should be able to get one under $150.