Tuners for GX460?

[Stepsride]

Hey folks
This is my first post after being a member for a few weeks. I am new to the Lexus Gx460 but not to owning a Toyota. Does anyone know if there is a company like a Superchips for ex, that has the ability to alter tire size, and other functions?

 

[r2m]

I've looked all over there is nothing that can adjust your speedometer for tire size that I've found yet.
I'm running LT285/75R17 and my speedo is almost a perfect 10% off. When I'm reading 50 mph, my real speed per my phone GPS is 55 mph. At least it helps on keeping my odometer 10 percent less!

 

[Stepsride]

I called Hypertec/Superchips/HPtuners/ and none of them have seen the need for it. In other words the market has not shown a need for it. The guys at HP tuners told me they may take a look at it since they have worked with many of the 200 series Landcruisers

 

[r2m]

Not sure if they'll see the volume to off set the R&D investment.
Total sales for GX460's:

2010	16,450
2011	11,609
2012	11,039
2013	12,136
2014	22,685
2015	25,212
2016	25,148
2017	27,190

Out of total sales above, how many would one think swaps out to larger tires. Of those, how many would go and purchase a product for speedometer adjustment? Maybe 5% off total sales and that's on the high side? That would only be about 1,500 units (over how many years worth of sales) and these are not considered a consumable, just a one time purchase. The only way to make that profitable would be if they could use the software and code from an existing product, like the Landcruisers or maybe Prados and repackage it for the GX's.
The sales numbers just aren't like Tacoma's, 4Runners or even Landcruisers.

 

[bigredmachine]

marks 4wd has some speedo correction options Digital / Electronic & Mechanical Speedo Correction Boxes. slee used to offer a speedo correction box but I don't see it on their site at the moment, might be worth a call to see if they have some available.

 

[Stepsride]

I will take a look thanks for the info. I did not think this would be an easy thing to source.