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MICHIGAN · MAIL-IN SERVICE

GPEC2 / 2A / 3 / 4 / 4LM PCM Unlocking in Michigan

Ship your module from Detroit or anywhere in Michigan — 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 Turnaround ~2-3 day USPS from MI
Text Before You Buy

Why Michigan customers mail in gpec2 / 2a / 3 / 4 / 4lm pcm unlocking

Michigan has roughly 8.1 million registered vehicles, and domestic trucks & SUVs make up much of what Detroit-area shops and owners mail us. Domestic work like gpec2 / 2a / 3 / 4 / 4lm pcm unlocking runs high-volume across Michigan — we see a steady stream out of Detroit, Grand Rapids, Warren. Cross-region north — about 2-3 days each way.

Metros we serve in Michigan

DetroitGrand RapidsWarrenAnn Arbor

Michigan at a glance

  • ~8.1M registered vehicles statewide
  • Most common: domestic trucks & SUVs
  • Michigan has no statewide periodic vehicle safety or emissions inspection program.

What you get

  • Module unlocked — tuner software (HP Tuners, EFILive, DiabloSport, Hemituner) can now read + write
  • Original locked-state data archived 90 days
  • No tuning performed — we leave the calibration stock (you tune as you wish after)
  • 24-hour bench turnaround
  • Return shipping your choice at checkout — standard, 2-day, or overnight
  • Photo of completed work

Shipping timeline — Michigan ↔ Arlington TX

USPS Priority routes north through the Central network; usually 2-3 days. Typical round-trip from Detroit or anywhere in Michigan:

  1. Day 0

    You ship

    USPS Priority from MI, ~$12

  2. Day 2-3

    We receive

    Workshop opens + inspects

  3. Day 3

    Work done

    24-hour bench turnaround

  4. ~Day 7

    Back to you

    Return speed you chose at checkout

Michigan FAQ

Common questions from customers shipping from Michigan.

How long does shipping take from Michigan to your Arlington TX workshop?
USPS Priority Mail from Detroit, MI reaches our Arlington workshop in about 2-3 business days. USPS Priority routes north through the Central network; usually 2-3 days. 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 Michigan?
USPS Priority flat-rate from Michigan to Arlington TX runs about $12. The customer pays shipping to us; return shipping back to Michigan is selected at checkout — $14.95 standard (3-5 business days), $29.95 UPS 2-Day, or $74.95 UPS Next Day Air, flat nationwide. Cross-region north — about 2-3 days each way.
Do you accept gpec2 / 2a / 3 / 4 / 4lm pcm unlocking modules from Michigan?
Yes — we receive modules from Detroit, Grand Rapids, Warren, Ann Arbor and the rest of Michigan regularly. With about 8.1 million registered vehicles statewide, domestic trucks & SUVs are the bulk of what we see from Michigan.
Is there a gpec2 / 2a / 3 / 4 / 4lm pcm unlocking shop in Detroit I should use instead?
Most Detroit shops don't keep the bench equipment for gpec2 / 2a / 3 / 4 / 4lm pcm unlocking — 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-region north — about 2-3 days each way.
Does Michigan vehicle inspection or emissions testing affect this service?
Michigan 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 Michigan and federal requirements.
Is this legal?
Yes for off-road / racing / non-emissions-vehicle use. Modifying the calibration of an emissions-regulated vehicle for street use violates EPA Clean Air Act regulations. We don't tune; that decision is on you.
Do you tune the module too?
No — we only unlock it. Tuning is a separate skill set and we deliberately stay out of the calibration / dyno-tuning business. After we unlock, you (or your tuner) flash whatever calibration you want using HP Tuners, EFILive, DiabloSport, or similar.

Full details

See the complete GPEC2 / 2A / 3 / 4 / 4LM PCM Unlocking service page

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

Full Service Page

Same service from other states:

AlabamaAlaskaArizonaArkansasCaliforniaColoradoConnecticutDelawareFloridaGeorgiaHawaiiIdahoIllinoisIndianaIowaKansasKentuckyLouisianaMaineMaryland

Ship from Michigan today

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

(817) 678-3252