Short vs Extended Cable: How to Tell Which Your Car Needs

More than 200 of the models in our catalogue are offered with a choice of short cable or extended cable with quick-removal connector (+$89). It is a small decision that makes a big difference to how easy the device is to live with, so here is a plain-English guide.

What the two options are

• Short cable — the standard harness. The module sits directly behind the instrument cluster where it plugs in line with the factory connector. Compact, invisible, and ideal if you fit it once and leave it.
• Extended cable — the same module on an extra length of harness (around 18 in / 45 cm), with a quick-release connector in the line. The module can be routed to somewhere you can reach without removing trim, and the whole device can be unplugged in seconds.

Who should choose the extended cable

1. You remove the device regularly. Track-day cars, dyno shop loaners and demo vehicles go back to normal use between sessions. With the extended harness you unclip the module rather than pulling the cluster each time.
2. The cluster is awkward to get at. Trucks and SUVs with deep dashboards — the F-150, Silverado, Ram 1500 and the big GM SUVs — are far easier with the module routed down to the lower dash.
3. You want the module within reach. Modes are selected with the high-beam stalk, so you never need to touch the module in normal use, but having it accessible makes checking or unplugging it simple.

Who can skip it

If the car is a dedicated competition or development vehicle, the device is going in once, and you have no plans to swap it between cars, the short cable does the job and saves $89. Owners of vehicles where the cluster comes out with four screws (many Toyota, Honda and Hyundai models, for example) also tend to stay with the short version.

BMW owners: a note on “long cable”

On our BMW listings the option is labelled long cable with quick removal and is chosen per chassis (F30, G20, G05 and so on). The function is the same. Some of the newest Curved Display cars (G20 LCI, G42 LCI, i4) use a different device and do not offer a cable choice — the product page tells you.

Does the extended cable change anything electrically?

No. Both versions use the same vehicle-specific harness and the same module. The extension is a plug-and-play addition; there is still no cutting, no soldering and no coding. Installation time is the same — typically 20–45 minutes depending on how the cluster comes out.

Price and how to order

The extended cable is a flat +$89 on every model that offers it, regardless of the blocker’s price. Choose it from the “Cable Type” drop-down on the product page; the headline price updates to the total before you add it to the cart. Still unsure? Use the contact page with your year, model and trim and we will tell you which one fits best.

Frequently asked questions

Can I buy the extended cable separately later?

The extension is supplied as part of the harness, so it is best chosen when you order. Contact us if you need to change an existing unit.

Does the extended cable affect the warranty?

No. Both versions carry the same 12-month warranty.

Where should I mount the module with the extended cable?

Most installers tuck it behind the lower dash panel or the kick panel on the driver’s side, secured with a cable tie, where it can be reached without tools.

Mileage blockers sold by Mileage Blocker USA are intended for off-road, motorsport, dyno testing and vehicle-development use. They must not be used to alter the recorded mileage of a vehicle that is offered for sale. Federal law (49 U.S.C. §32703) prohibits odometer tampering with intent to defraud, and state laws add further penalties. Please make sure your use is lawful where you are.