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BMW X3 20i N20 Inline-4 TT F25

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Recently we had the opportunity to dyno test our ECU tune for BMW 420i (F32) with 2.0L N20B20 powerplant. The 420i was tested on a 4×4 Dyno Dynamics dynamometer at OE Tuning Master dealer, BMR Autowerkes in Sydney, Australia. Tested vehicle had a “piggy back” tuning box connected so we tested power with tuning box connected first, then removed the tuning box, tested stock baseline power before loading the ECU tune for testing. The ECU tuning results over the tuning box were very strong at every RPM point. When the ECU tune is compared to the stock power run, the gains are amazing! ECU Tuned power is more than a stock 428i! +40-45% more power!!


For more information please contact a trained sales representative +1-818-574-5074 or

Additional Information

ModelX3 20i Inline-4 TT
Stock Peak HP181
Tuned Peak HP215
Max HP Gain34
Stock Peak Torque199
Tuned Peak Torque236
Max TQ Gain37
Modification DescriptionOBD2 Flash
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