OBDII Blocker: protecting the diagnostic port
A device hidden behind the dash lets owners control the OBDII port from their phone. One of our three SEMA 2026 picks.

The OBDII port is the diagnostic connector every modern vehicle has under the dash, and it is exactly where a thief with the right equipment can program or clone a key. Performance Electronics' OBDII Blocker installs out of sight and gives the owner control of that port through a free Bluetooth mobile app. It stops thieves from cloning keys, reads the CAN bus (the internal network the vehicle's modules use to talk to each other) securely, locks and unlocks automatically, and adds a configurable 12-volt accessory port with smart switching.
For us it is much more than a security device, though security is the heart of it. More and more recent vehicles with electronic keys are reaching Venezuela, and with them the risk of those keys being cloned through the diagnostic port. This unit protects against exactly that, which is why we chose it with the Venezuelan market and Zulia State in mind.
It was entered in the "Engineered New" category. At the SEMA Show we had the pleasure of meeting Tim Michaliszyn, Sales & Marketing at Performance Electronics, and his team.
Facts
- Company
- Performance Electronics
- Category
- Engineered New
- Part number
- 90270001
- MSRP
- US$299.00
- Booth
- 23829
- Event
- SEMA 2026 New Products Showcase

