Product images and videos are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Stillen

ECM Calibrator

Name: ECM Calibrator
Brand: Stillen
SKU: 90043
Price: 179.95 USD
Availability: InStock

$179.95

SKU: 90043

In Stock

Ships by Aug 31

Free Shipping over $200

$100 Minimum Order

30 Days Return

Description

When you upgrade your tires, your vehicle's computer, which is calibrated for stock tire height, will show a discrepancy between your actual speed and the speedometer reading. This plug-and-play device connects directly to your vehicle's Diagnostic Link Connector Port. Beyond simply correcting the in-dash readout, this calibrator updates your vehicle's ECM to ensure accurate shift points and proper electronic stability control functionality. It offers an affordable and intuitive setup process for achieving true speedometer readings. A key feature is the inclusion of a function to reset the speedometer back to stock settings before servicing the vehicle. The device comes with a 1-year warranty and has an estimated install time of 1-2 hours. It is not for sale or use in California due to emissions certifications. Rough Country's Speedometer Calibrator can only be used with one vehicle at a time. Once programmed to a vehicle, it is locked to that vehicle unless returned to stock settings.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

Brand	Stillen
Part Number	90043
Category	Air and Fuel

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

(760) 282-4645 Instagram Google

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

View Full Shipping Policy