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As for dropping a tooth on the front cog...it might not work.....it's a speed limiter not a rev limiter.....trying to get my head round how it actually does what it does....e.g. if the ecu reads speed.....then either I will have an inaccurate speedo or it'll surely still cut out if I use a tune to compensate....?
It does now seem a bit more complicated 
I'm not sure what your speedo is driven by. There is a speedometer correction factor in the map that can be changed with TuneECU. So you can compensate for changes at least to some degree.
A tune wouldn't defeat the limiter but may improve your acceleration when near and up to it.
09 America, some modifications
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