Fi Exhaust vs 034SPI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fi Exhaust
Control your premium automobile's exhaust system with this app. Adjust valve settings, experience different exhaust sounds, and monitor your car's status. Requires a specific OBD2 controller module.
- Wireless valve control (Open/Close)
- Adjust exhaust sound and velocity
- Valvetronic exhaust system function control
- Intelligent switch button control (RPM, Speed, Turbo)
- Monitor car status
- Access Fi Exhaust information
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Frequency Intelligent Exhaust Remote Controller Fi Exhaust App is the key to experience the passion of engineering. To begin a whole different lifestyle and outstanding attitude with Fi Exhaust system. Control everything by one touch and enjoy everything it comes with. Frequency Intelligent Exhaust systems perfectly combine many years of expertise and modern technology to create the world's most advanced exhaust system for Premium Automobiles. Each Fi Exhaust system are truly one-of-a-kind. From a deep bass tone to an exotic high-pitched Formula 1 sound. Every exhaust system is carefully sound tuned and rigorously tested to a specific frequency with our intelligent controller to produce maximum optimized performance. Fi Exhaust, the world's leading designer and fabricator of the best, high performance engine component systems, Supercar applications. Control the world famous Fi Exhaust system in your hands. With this official application, you can control valve by yourself, hear the dream sound, see the status of your car, and know more Fi Exhaust information by downloading the APP in your iPhone or smart tablet . Features: - This App can wireless control Fi valvetronic exhaust system to control the valve to OPEN/ CLOSE and obtain the best exhaust sound and exhaust velocity. - Use App to control valvetronic exhaust system function. (On/off/auto) - Setting intelligent switch button control by RPM of engine mode, speed mode, or Turbo boost mode. (Auto mode). Warning: Only can be worked with Frequency Intelligent Exhaust OBD2 Controller Module. More information & content: www.fi-exhaust.com Any question, problem, or feedback? Please email to: info@fi-exhaust.com
034SPI
This app allows users to flash their car's ECU/TCU tunes, configure live data displays, and record data logs for analysis. It also provides diagnostic support tools like reading and clearing DTC codes.
- Flash ECU/TCU tunes
- Configure live data displays
- High-speed data logging
- Upload logs to server
- Read and clear DTCs
- View emissions monitor status
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Designed for use on iPhone/iOS as well as Apple Silicon-equipped laptops (M1, M2, M3), 034SPI allows you to easily flash your car, change fuel maps, configure live data displays, record and submit data logs to 034Motorsport's Tuning Support team, and utilize diagnostic support tools such as DTC/CEL code read/clear and more! Available now for use with any Dynamic+ ECU or TCU tune and the latest Dynamic+ End User Flashing Dongle (May 2023 & Newer)! Full App Features: Complete Any ECU Or TCU Tune flash Quickly Flash Different Fuel Octane Or Transmission Files Flash ECU/TCU Using Mobile Device's Internet Connection Enhanced Flashing Protocol Protections For Increased Flashing Stability User-Configurable Live Data Displays Dozens Of Defined Variables Available Multiple Display Types Available for Live Dt High-Speed Data Logging Of Pre-Defined Variables Easy Upload Of Logs To 034Motorsport Server Data Log Analysis Services Available Free Of Charge Read & Clear DTCs On ECU & TCU View Emissions Monitor Statuses Perform Adaptations/Recalibrations* Throttle Body Adaptation Fuel Tank Drain *Available for limited platforms, coverage expanding regularly
Screenshots
Verdict
The clearest difference is review sentiment: 034SPI at 55% against Fi Exhaust's 0%. 034SPI also leads on rating (4.2 vs 2.5) and ratings volume (43 vs 2). Fi Exhaust's advantage is iOS requirement (8.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
034SPI holds the better App Store score, 4.2 against 2.5. That said, the two scores are not equally well evidenced: 034SPI has 43 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of Fi Exhaust's written reviews are positive against 55% of 034SPI's.
Fi Exhaust ships an update every 2 months, 034SPI every 3 weeks. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.
| Parameter | Fi Exhaust | 034SPI |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (2 ratings) | 4.2 (43 ratings) — better |
| Positive reviews | 0.0% of reviews | 55.0% of reviews — better |
| Number of ratings | 2 | 43 — better |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 21 MB | 126 MB |
| Age rating | 4+ | 4+ |
| Developer | Frequency Intelligent Exhaust Co. LTD | 034Motorsport |
Customer experience
Fi Exhaust
034SPI
In-app purchases
Fi Exhaust
No in-app purchases
034SPI
No in-app purchases
