Midgard Industries · Mail-in tuning

Mail-in LS swap base tunes.

Choose the base tune that fits your ECU and build. Tell us about your setup, then send your module to Midgard Industries for programming.

Compare base tunes How mail-in tuning works

Built around your setup

Gen III P01 / P59 and Gen IV E38
Stock and modified packages
Vehicle details collected before checkout

Mail-in base tunes

Start with your ECU.

Full service details

P01 / P59 · Mail-in service

Gen III LS Base Tune

Best for stock engines and basic LS swaps. Modified engine? Choose the cammed package when you configure your order.

Stock / Near-Stock Base Tune: $100.00
Cammed / Modified Base Tune: $150.00

Plus $10.00 return shipping. US orders only. You arrange inbound shipping.

Configure Gen III base tune

E38 · Mail-in service

Gen IV LS Base Tune

Best for stock Gen IV engines and basic E38 swaps. Modified engine? Choose the cammed package when you configure your order.

Gen IV Stock / Near-Stock Base Tune: $200.00
Gen IV Cammed / Modified Base Tune: $250.00

Plus $10.00 return shipping. US orders only. You arrange inbound shipping.

For 4L60E / 4L80E automatic swaps, mail your TCM with the E38. TCM programming is included.

Configure Gen IV base tune

Order. Mail it in. Get it back ready for startup.

Select your generation, package, and build details in the configurator.
Complete checkout and follow the shipping instructions.
We program your module and return it to you.

Typical turnaround is 1-2 business days after the ECU is received.

Not sure which package fits?

A base tune is a starting calibration, not a final dyno or road tune. Check ECU compatibility, package details, and the information needed for your build before ordering.

Read the base-tune FAQ Ask about your setup