LHH Performance · Mail-in
Mail-in ECU calibration
Ship your ECU from wherever you are. We calibrate it in Inkoo and send it back. No need to bring the boat. Yamaha, Suzuki, Honda, Tohatsu, Mercury, jets, and diesel inboards.
Ship from anywhere · Inkoo workshop · tracked return
Call the workshop0457 835 2920Always use tracked shipping. Insure high-value hardware.
Workshop checklist
Remove the ECU
Follow the manufacturer service notes for your engine. Location and fasteners vary by brand and year.
- 01Switch off 12 V power (battery cut-off or battery terminals).
- 02Open the cover and locate the ECU.
- 03Photograph connectors and mounting before anything comes loose.
- 04Unplug connectors carefully, then remove mounting screws.
Keep power off the whole time the ECU is out of the boat.
Workshop checklist
Pack for transit
ECUs units fail from impact and static more often than from the flash itself. Pack as if the parcel will be dropped.
- 01
Wrap the ECU in several layers of bubble wrap or foam.
- 02
Place it in a rigid cardboard box with no empty space.
- 03
Add anti-static protection where you can.
- 04
Tape a printed note with your contact and engine details inside the box.
What to send
Put a clear note in the box. Missing details slow the job.
- –Full name
- –Phone number
- –Email address
- –Order number if you have one
- –Engine brand and model
- –Year
- –ECU part number if known
- –Goal: economy, torque, balance, or other
After we receive your ECU
No flash until the unit and agreed calibration match.
- 01We verify the ECU part number
- 02We confirm the agreed calibration is correct
- 03We flash the ECU with the agreed calibration
- 04We package and return the ECU
- 05You reinstall and get back on the water
Why customers choose mail-in
- 01Ship from anywhere
- 02No need to haul your boat
- 03ECU compatibility reviewed before flashing
- 04Fast turnaround once received
Sales and refunds
Mail-in engagements are subject to the same Terms of Service as other workshop Services.
Full termsCompleted custom work
Completed engine-specific tuning is custom professional work. Except where mandatory law requires otherwise, LHH does not offer voluntary refunds for completed custom calibration. If we saved the factory program and the hardware allows, we can restore the ECU to its original stock tune free of charge on request.
If an incorrect calibration is selected, the order may be switched to the correct product before flashing.
If inspection shows that the selected calibration is not a correct match, LHH will contact you before writing and offer a switch to a suitable product.
Shop
Pay for mail-in in the shop.
Pick the calibration online, complete checkout, then ship the ECU with the packing steps on this page.
Need help first?
If you are unsure which calibration or ECU option to choose, contact us before ordering.