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MONTANA · MAIL-IN SERVICE

GM ECU IMMO-Off (E98 / E80 / E82 / E84) in Montana

Ship your module from Billings or anywhere in Montana — we complete the work in 24 hours and ship it back at the return speed you choose at checkout — standard to overnight.

$250 flat 24-Hour Bench Turnaround ~3 day USPS from MT
Text Before You Buy

Why Montana customers mail in gm ecu immo-off (e98 / e80 / e82 / e84)

Montana has roughly 1.7 million registered vehicles, and full-size pickups & 4x4 SUVs make up much of what Billings-area shops and owners mail us. Domestic work like gm ecu immo-off (e98 / e80 / e82 / e84) runs high-volume across Montana — we see a steady stream out of Billings, Missoula, Great Falls. Cross-country northwest — about 3 days each way.

Metros we serve in Montana

BillingsMissoulaGreat FallsBozeman

Montana at a glance

  • ~1.7M registered vehicles statewide
  • Most common: full-size pickups & 4x4 SUVs
  • Montana has no statewide periodic vehicle safety or emissions inspection program.

What you get

  • Immobilizer requirement removed from your GM ECU
  • Checksum-corrected so the ECU runs clean
  • ECU that runs outside its original donor vehicle
  • Bench-verified before it ships back
  • Guidance on what your swap harness still needs
  • 24-hour bench turnaround after the module arrives

Shipping timeline — Montana ↔ Arlington TX

USPS Priority routes northwest through the Mountain network; about 3 days given the distance. Typical round-trip from Billings or anywhere in Montana:

  1. Day 0

    You ship

    USPS Priority from MT, ~$13

  2. Day 3

    We receive

    Workshop opens + inspects

  3. Day 4

    Work done

    24-hour bench turnaround

  4. ~Day 7

    Back to you

    Return speed you chose at checkout

Montana FAQ

Common questions from customers shipping from Montana.

How long does shipping take from Montana to your Arlington TX workshop?
USPS Priority Mail from Billings, MT reaches our Arlington workshop in about 3 business days. USPS Priority routes northwest through the Mountain network; about 3 days given the distance. We start work the same day your module arrives and ship back next business day at the return speed you chose at checkout.
How much does it cost to ship a module from Montana?
USPS Priority flat-rate from Montana to Arlington TX runs about $13. The customer pays shipping to us; return shipping back to Montana is selected at checkout — $24.95 standard (3-5 business days), $54.95 UPS 2-Day, or $94.95 UPS Next Day Air, flat nationwide. Cross-country northwest — about 3 days each way.
Do you accept gm ecu immo-off (e98 / e80 / e82 / e84) modules from Montana?
Yes — we receive modules from Billings, Missoula, Great Falls, Bozeman and the rest of Montana regularly. With about 1.7 million registered vehicles statewide, full-size pickups & 4x4 SUVs are the bulk of what we see from Montana.
Is there a gm ecu immo-off (e98 / e80 / e82 / e84) shop in Billings I should use instead?
Most Billings shops don't keep the bench equipment for gm ecu immo-off (e98 / e80 / e82 / e84) — they'd forward the module to a specialist anyway, which adds a markup and a middleman. Going direct to us is usually faster and cheaper. Cross-country northwest — about 3 days each way.
Does Montana vehicle inspection or emissions testing affect this service?
Montana has no statewide periodic vehicle safety or emissions inspection program. Our service is bench module programming only — you remain responsible for your vehicle's compliance with all Montana and federal requirements.
Will this let my swapped LS/LT run without the donor car's security?
Yes — that is exactly what the immobilizer-off does. It removes the anti-theft requirement so the E98/E80/E82/E84 runs standalone, which is what an LS/LT swap into an older or non-GM chassis needs. Your harness still has to provide power, ground, and the right inputs.
Is this a tune?
No — this is immobilizer removal only, not a calibration or performance tune. It makes the ECU run outside its original vehicle; it does not change fueling, timing, or emissions.

Full details

See the complete GM ECU IMMO-Off (E98 / E80 / E82 / E84) service page

Compatibility list, what it fixes / doesn't fix, shipping instructions, warranty.

Full Service Page

Same service from other states:

AlabamaAlaskaArizonaArkansasCaliforniaColoradoConnecticutDelawareFloridaGeorgiaHawaiiIdahoIllinoisIndianaIowaKansasKentuckyLouisianaMaineMaryland

Ship from Montana today

Pay now, get the Arlington TX shipping address by email, drop it in the mail. Full round-trip from Billings: about a week.

(817) 678-3252