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MPPS V21 ECU Chip Tuning Tool

MPPS V21 ECU Chip Tuning Tool

Best price now

$19.99at eBayChecked 55 min ago

49% under what the other stores charge

Compared across 4 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission.

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Price facts

  • Lowest price today: $19.99 at eBay (checked Nov 14, 2026).
  • Checked at 4 stores.

Our take on the MPPS V21 ECU Chip Tuning Tool

The MPPS V21 is a bench-tuning interface for reading and writing engine ECU maps over OBD and on the bench. This version adds a reset button that removes the old 10-use lockout, plus a Tricore module and multi-boot breakout cable for Tricore ECUs. It covers Marelli M3.8, M5.9, ME7xx, MED9 and MED17, Bosch EDC15, EDC16 and EDC17, and Delphi, Siemens, Delco, Sagem and Trionic units. It suits DIY tuners and small workshops working on older diesel and petrol cars; it is a clone-grade tool, so expect manual driver setup and no firmware updates.

Best forDIY tuners remapping older diesel and petrol ECUsSmall workshops doing bench work on Tricore unitsOwners of Marelli and Bosch EDC-equipped carsHobbyists who want a low-cost read/write tool
Pros
  • Reset button removes the 10-use lockout
  • Tricore module and breakout cable included
  • Wide ECU coverage: Marelli, Bosch, Delphi, Siemens, Sagem, Trionic
  • Multi-language software interface
  • Works over OBD and on the bench
Cons
  • Firmware updates lock the device permanently
  • Antivirus must be disabled and drivers installed from the CD
  • Software is dated and Windows-only
  • Clone-grade build and support; no official updates

MPPS V21 ECU Chip Tuning Tool prices at every store

  • eBayNew

    In stock

    $19.99+ $5.00 shippingChecked 55 min ago
    Visit eBay
  • AliExpressNew

    In stockShips from abroad · duties may apply

    $47.09Checked 55 min ago
    Visit AliExpress
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $31.81+ $2.29 shippingChecked 55 min ago
    Visit Amazon
  • VXDASNew

    Availability unknown

    $39.00Checked Oct 31
    Visit VXDAS

Store links may earn us a commission.

MPPS V21 ECU Chip Tuning Tool price history

$39.00$19.99
Oct 31Nov 14

Lowest price we've seen: $19.99 on Nov 14 at eBay; highest $39.00 on Oct 31. Tracked across 4 stores since Oct 31.

What reviewers say

Owners of this tool generally report it reads and writes the ECUs it lists, and the reset button is the main draw over the older locked version. Complaints center on setup: driver and antivirus problems, and devices bricked by firmware updates.

What people mention
  • Reset buttonPraisedOwners say the reset button removes the old 10-use lockout and keeps the tool usable.
  • ECU coverageMixedMany report successful reads and writes on Bosch and Marelli units, but some listed ECUs fail.
  • SetupCriticisedDrivers must come from the included CD with antivirus off, and setup trips up many buyers.
  • FirmwareCriticisedUpdating the firmware locks the device and requires a factory return, owners warn.
  • SoftwareMixedThe multi-language interface works but feels dated and runs only on Windows.

From VXDAS

  • No usage limitations: lifetime use reset button replaces the old 10-use lockout
  • Adds support for advanced functions on Marelli ECUs
  • Covers Marelli M3.8, M5.9, ME7xx, MED9, MED17
  • Covers Bosch EDC15, EDC16, EDC17
  • Also supports Delphi, Siemens, Marelli, Delco, Sagem, Trionic and many others
  • Multi-language software interface
Sizing
Do not update the firmware; upgrading it will lock the device and require factory reprogramming. Disable antivirus before use and install the drivers from the i
Guarantee
1-year warranty with free repair and 1-year free updates; warranty voided by unauthorized disassembly, man-made damage or main chip damage.
Returns
Returns accepted for mis-ordered items (buyer pays shipping both ways), verified quality issues, or change of mind (original shipping plus 15% restocking fee de
Shipping
Ships within 48 hours after payment; free shipping with estimated delivery 5-18 business days, express option available.
In the box
Main unit, Tricore module, Multi-Boot with breakout Tricore cable, Reset button, Driver/software CD

About the MPPS V21 ECU Chip Tuning Tool

The MPPS V21 is an ECU chip tuning tool. This version includes a Reset Button, a Main unit, a Tricore module and Multi-Boot with a breakout Tricore cable. It works with MPPS V18 and MPPS V22 main ECU tuning setups.

The older MPPS V21 locked after 10 uses and needed a factory reset. This version has no usage limit, because the Lifetime Use Reset Button allows continuous operation without a lockout. It also adds support for advanced functions on Marelli ECUs.

Do not update the firmware. An update locks the device, and a locked unit must be returned to the factory for reprogramming. Disable antivirus software before use. Install the drivers from the included CD before opening the software. Drivers from other MPPS versions may stop the software from opening.

ECU coverage
Marelli M3.8, M5.9, ME7xx, MED9, MED17; Bosch EDC15, EDC16, EDC17
Other brands
Delphi, Siemens, Marelli, Delco, Sagem, Trionic and others
Usage limit
None, with Lifetime Use Reset Button
Languages
Afrikaans, Albanian, Malay, Czech, Welsh, Danish, German, Estonian, English, Spanish, Filipino, Finnish, French, Catalan, Croatian, Indonesian, Italian, Swahili, Latvian, Lithuanian, Hungarian, Maltes
Firmware
Do not update; updating locks the device
Drivers
Install from the included CD only
In the box
Main unit, Tricore module, Multi-Boot with breakout Tricore cable, Reset button, Driver/software CD

Questions and answers

Does the reset button really remove the 10-use limit?
Yes. The reset button is the fix for the old lockout, so the tool keeps working instead of stopping after 10 uses.
Can I update the firmware?
No. A firmware update locks the device, and it then has to go back to the factory for reprogramming.
Which ECUs does it cover?
Marelli M3.8, M5.9, ME7xx, MED9 and MED17; Bosch EDC15, EDC16 and EDC17; plus Delphi, Siemens, Delco, Sagem and Trionic units.
What is in the box?
The main unit, Tricore module, multi-boot breakout Tricore cable, reset button and a driver/software CD.
Why won't the software open?
Usually wrong drivers. Install the drivers from the included CD with antivirus disabled before opening the software.
Does it work on Mac?
No. The software is a Windows program, so you need a Windows laptop for tuning.
Where is the MPPS V21 ECU Chip Tuning Tool cheapest?
At eBay, for $19.99, 49% under what the other stores charge, as of our latest check.
Where can I buy the MPPS V21 ECU Chip Tuning Tool?
4 stores we checked sell it, including eBay, Amazon, AliExpress, VXDAS.

Stores we've priced the MPPS V21 ECU Chip Tuning Tool at

  • AliExpress deals and prices

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