JB4 ECU/DME Tuner Piggyback for BMW B38/B46/B48 Engines
4.5 (1,234)
Sold 100+ last 30 days
20% off first order
$599.00$608.00
1% off
Color
Black
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Description
Power gains of up to 100hp on a stock vehicle without the risks of flashing!
The JB4 is the most advanced and highly featured tuning system available for your B58 and B48 vehicle. Power gains are up to 80hp to the wheels (100hp crank) on a ...