034SPI

034SPI

Dynamic+ Smartphone Interface

42 ratings
19 reviews
Free

Details

  • Released
  • Updated
  • November 6, 2023
  • June 18, 2026

Features

034SPI screenshot #1 for iPhone
034SPI screenshot #2 for iPhone
034SPI screenshot #3 for iPhone
034SPI screenshot #4 for iPhone
034SPI screenshot #5 for iPhone
034SPI screenshot #6 for iPhone
034SPI screenshot #7 for iPhone
iphone
ipad
🖼️Get Icon
Icons↘︎

About

This app allows users to flash their car's ECU/TCU, change fuel maps, and configure live data displays. It also provides diagnostic tools like reading and clearing DTC codes. Compatible with Dynamic+ ECU/TCU tunes and the Dynamic+ End User Flashing Dongle.

Flash ECU/TCU tunes
Change fuel octane/transmission files
Configure live data displays
High-speed data logging
Read & clear DTC codes
Perform adaptations/recalibrations
Show original description

What's New in 034SPI

2.22

June 18, 2026

B9 VariSpec Support

User reviews

Josh is the guy

I was going through issues getting into the app because of my own mistake and Josh short for Joshua helped me out step by step. I can’t thank him enough for the help. Josh is that guy.

Server can go down leaving you stranded

Filled up e85 and tried to flash using the mobile flasher and could not connect to the server. Tried on my pc and same issue. Server went down causing me to miss plans and leave my car stranded

Works just fine

Used it a few times, only issues I’ve had was with iPad battery too low or wifi not working.

Interface is fine, customer service via app is meehhhh could be better.

Via email, the guys got back to me within the day, tune logs came within 12hrs.

I nagged them as I needed the a tcu file on a track day, they got it to me within 6hrs.
Show more

Email sign up

I have the same issue, email will not send prior to purchasing a tune

Issue creating an account on app

It keeps saying an email has been sent with further instructions but i haven't received anything even when i tried multiple emails. Please give me some help

FAQ

What does the 034SPI app do?

The 034SPI app allows you to flash your car's ECU and TCU tunes, change fuel maps, configure live data displays, and record data logs. It also includes diagnostic tools for reading and clearing DTC/CEL codes.

What are the key features of the 034SPI app?

Key features include the ability to complete any ECU or TCU tune flash, quickly flash different fuel octane or transmission files, and utilize user-configurable live data displays. It also offers high-speed data logging with easy upload and the capability to read and clear DTCs.

Is the 034SPI app free to use?

Based on the provided information, the app is available for free. It requires a compatible Dynamic+ ECU or TCU tune and the latest Dynamic+ End User Flashing Dongle (May 2023 & Newer) to function.

What devices is the 034SPI app compatible with?

The app is designed for use on iPhone/iOS devices and Apple Silicon-equipped laptops (M1, M2, M3). It requires the latest Dynamic+ End User Flashing Dongle to connect with your vehicle.

What are common use cases for the 034SPI app?

Common use cases include flashing your car for performance upgrades, switching between different fuel octanes, monitoring real-time engine data, and diagnosing or clearing check engine lights. It's also useful for submitting data logs for tuning support.