
Spool Wireless Ethanol Analyzer Kit - F97 X3 M / F98 X4 M
Ships from the brand or distributor, usually in 3–7 business days
Make sure this fits your car
Fits: BMW X3 M (F97) and X4 M (F98)
- Free US shipping over $250
- 30-day returns on unused parts
- Fitment help before you buy
The Spool wireless Ethanol Analyzer kit is a very cost-effective and robust ethanol content and fuel temperature monitoring solution. With the included smartphone app, the analyzer paired with a GM ethanol sensor can display the in-tank fuel's ethanol concentration percentage and fuel temperatures in Fahrenheit. The Analyzer module incorporates the latest Bluetooth 4.0 low energy protocol which means very little battery usage on your smartphone and also leaves regular Bluetooth functions and connectivity on your smartphone untouched. Why do you need an Ethanol Analyzer solution? According to the latest ASTM guidelines, Ethanol blends rated E85 can have anywhere from 51% to 85% ethanol content. This means the E85 at your pump can in fact at times, be only E55 containing 55% ethanol.
Fits: BMW X3 M (F97) and X4 M (F98)
Brand: Spool Performance
BMW X3 M (F97) and X4 M (F98)
| Model | Chassis | Years | Engine | Fits |
|---|---|---|---|---|
| M3 | G80/G81 | 2021+ | S58 (BMW M) | |
| M4 | G82/G83 | 2021+ | S58 (BMW M) | |
| M2 | G87 | 2023+ | S58 (BMW M) | |
| X3 M | F97 | 2020–2024 | S58 (BMW M) | |
| X4 M | F98 | 2020–2025 | S58 (BMW M) |
Not sure? Email sales@b58racing.com with your VIN.
- Ships from the brand or distributor, usually in 3–7 business days.
- Free US shipping on orders over $250.
- Unused parts can be returned within 30 days. Some items are marked no-refund in their description.
Full details are on our shipping and returns page.
Pairs well with

Spool Handheld Ethanol Content Analyzer

Spool B58/S58 Plug and Play Ethanol Sensor Harness

Spool Split Fuel Surge Tank

