DOC #CERT-43C9-BE11-48A7
10.09.2026
Performance Report
ECU Chiptuning — Stage 1
Document Date
10.09.2026
BMW 1 serie
E87 - 2007 - 2011 135i - N54 306hp Petrol
Original
306HP
400 Nm
Stage 1
362HP
510 Nm
+56 HP / +18% +110 Nm / +28%
Estimated Power and Torque Curve
Stage 2 Available
390 HP / 520 Nm
Customer
Chassis
Date
Signature
Stamp
NOTICE: This document represents estimated values based on database information. It is not valid as official certification without the original handwritten signature and physical stamp of the authorized technician. Performance values may vary based on vehicle condition, fuel quality and operating environment.