JB4 Tuner for gen2 b58 +BLUETOOTH KIT
Product details
| Management number | 36703618 | Release Date | 2026/01/04 | List Price | $195.00 | Model Number | 36703618 | ||
|---|---|---|---|---|---|---|---|---|---|
| Category | |||||||||
JB4 plug-and-play tuner for BMW B58 Gen 2 engines. Fully functional and in great condition- driven with it for past 15k miles no issues. Easy install, removable at any time, no ECU flash required. usually over $600!!!!!
Fits B58 Gen 2 models including:
M340i, M240i, X3 M40i, X4 M40i etc.
Features:
• Multiple maps
• Supports bolt-ons & ethanol blends
• App for logging/map switching
• insane power gains over stock
Includes: JB4 unit + harness + bluetooth connect kit
Selling because I’m switching tuning setups.
| Category | Other > Automotive > Tools & equipment |
|---|---|
| Size | N/A |
| Brand | BMW |
| Condition | Good |
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