4" Speedometer | 300 km/h Programmable Counter-Clockwise | Cobra Design

SKU: R4-S15-COB
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$290.33 USD
Real-time speed using your vehicle’s VSS signal with user-programmable calibration for gear ratio and tire size. Integrates with transmission or ECU outputs for clean installation across stock and custom setups. Microprocessor-controlled with a precision stepper motor for smooth, stable, and accurate readings.
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Order leaves our facility in about 2 Weeks

The VSS Speedometer delivers accurate, real-time speed using your vehicle’s speed sensor signal for consistent performance across a wide range of setups. Easily calibrated to match gear ratios and tire sizes, it adapts to both modern and older vehicles with reliable, precise speed tracking. Designed for clean integration with transmission or ECU speed outputs, it keeps your readings steady and dependable. A precision stepper motor keeps the needle smooth and stable, giving you clear speed at a glance. Built with a durable housing and solid aluminum bezel, it’s made for real driving conditions and long-term use. Made in the USA and backed for life.

Track-Tested. USA-Built. Backed for Life.

Key Features:

  • VSS Signal Compatible — works with most vehicle speed sensors
  • Adjustable Calibration — matches gear ratios and tire sizes
  • Flexible Integration — supports transmission and ECU speed signals
  • Microprocessor-Driven — real-time accuracy
  • Stepper Motor Precision — smooth, accurate pointer
  • Weather-Resistant Build — built for street, track, and off-road
  • Made in the USA — backed by a lifetime warranty
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Built to last. Backed for life.
  • Lifetime warranty on internal circuit board electronics
  • 5-year coverage on sensors and wiring
  • Applies to gauges purchased since Jan. 1, 2006

Every Speedhut gauge includes a lifetime warranty* on the electronic circuit board inside the gauge case. It is the core of the gauge — the part responsible for the precision communication that delivers the accuracy and performance Speedhut is known for.

Sensors, wiring, and other external components are covered by an unlimited 5-year warranty.

This combined lifetime / 5-year warranty applies to the original purchaser.
*For your lifetime — as long as you own the gauge — we stand behind it.
Speedhut Inc warrants products to be free from defects in materials or workmanship. This warranty is limited to repair or replacement. Speedhut Inc is not responsible for incidental or consequential damages. Improper use, installation, or unauthorized modifications void this warranty.

Yes, we can do that for you!

Please tell us your mileage in the 'Order Comments', and we will program your odometer when we build your gauge.

If you already own one of these speedometers you can send it back to us and we can program the miles into the odometer (shipping charges may apply).

No, we do not make mechanical speedometers.

One of the great features of our electronic speedometers is that they are programmable. They are easy to calibrate. You can even re-calibrate if you happen to change your rear-end gear or tire sizes. The overall calibration procedure is very simple.

If you exceed your speedometer's maximum speed, the pointer will remain at the maximum speed position, and will not move below the maximum speed position until your speed drops back into a readable range.

Luckily for all of the speed-fiends out there, this will NOT damage the speedometer.

If the speed exceeds the analog range and you are using a GPS speedometer with an LCD display then you can use the digital speed display feature to view your current speed.

No, our programmable speedometers do not come with a sender. Follow the instructions that come with the speedometer to program it to your vehicle’s OEM transmission sender electric pulse output. If you have an older style cable drive output then we do sell senders that convert the cable drive to an electrical signal. Please contact customer support for more information.

See diagram:

Speedometer signal from ECU

Low pulse count per mile will result in a slow response from the programmable speedometer. Our programmable speedometers can read from 1K to 300K pulses per mile. Most transmissions will output at least 10K or more pulses per mile. However, if your transmission is outputting around 1-5K pulses per mile you might notice a slight delay in speedometer responsiveness.

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