Auto Module Lab logoAUTO MODULELAB
SOUTH CAROLINA · MAIL-IN SERVICE

GPEC2 / 2A / 3 / 4 / 4LM PCM Unlocking in South Carolina

Ship your module from Charleston or anywhere in South Carolina — 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 SC
Text Before You Buy

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

South Carolina has roughly 4.2 million registered vehicles, and trucks, SUVs & imports make up much of what Charleston-area shops and owners mail us. Domestic work like gpec2 / 2a / 3 / 4 / 4lm pcm unlocking runs high-volume across South Carolina — we see a steady stream out of Charleston, Columbia, Greenville. Cross-region southeast — about 2-3 days each way.

Metros we serve in South Carolina

CharlestonColumbiaGreenvilleNorth Charleston

South Carolina at a glance

  • ~4.2M registered vehicles statewide
  • Most common: trucks, SUVs & imports
  • South Carolina 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 — South Carolina ↔ Arlington TX

USPS Priority routes east through the Southeast network; usually 2-3 days. Typical round-trip from Charleston or anywhere in South Carolina:

  1. Day 0

    You ship

    USPS Priority from SC, ~$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

South Carolina FAQ

Common questions from customers shipping from South Carolina.

How long does shipping take from South Carolina to your Arlington TX workshop?
USPS Priority Mail from Charleston, SC reaches our Arlington workshop in about 2-3 business days. USPS Priority routes east through the Southeast 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 South Carolina?
USPS Priority flat-rate from South Carolina to Arlington TX runs about $12. The customer pays shipping to us; return shipping back to South Carolina 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 southeast — about 2-3 days each way.
Do you accept gpec2 / 2a / 3 / 4 / 4lm pcm unlocking modules from South Carolina?
Yes — we receive modules from Charleston, Columbia, Greenville, North Charleston and the rest of South Carolina regularly. With about 4.2 million registered vehicles statewide, trucks, SUVs & imports are the bulk of what we see from South Carolina.
Is there a gpec2 / 2a / 3 / 4 / 4lm pcm unlocking shop in Charleston I should use instead?
Most Charleston 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 southeast — about 2-3 days each way.
Does South Carolina vehicle inspection or emissions testing affect this service?
South Carolina 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 South Carolina and federal requirements.
Will the unlock be detected by the dealer?
The unlock itself isn't outwardly visible — the module operates identically and reports normally to OBD-II. However, if you flash a non-stock tune AFTER unlocking, the dealer scan tool will see modified calibration values. To return to dealer-detectable-stock state, use our Stock OEM Re-Programming service.
What's the difference between this and your "Stock Re-Programming" service?
Unlock = removes the security so the module can be tuned. Stock Re-Programming = flashes the module back to factory OEM calibration. You'd use unlock BEFORE tuning, and stock re-programming AFTER (e.g., before selling, before warranty work, or after a failed tune).

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 South Carolina today

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

(817) 678-3252