Up to 40 Horespower at the wheels with no other modification!

Our entry level / budget tuner, the JB Stage 1 increases boost by 2-3psi and adds 30-40hp to the wheels. There is no better value in N54 tuning. Installs in the ECU area using the included OEM BMW connectors. Simply unplug two factory wires and insert the matching JB2 wires.
Completely reversible, no cutting and detection code free.

Instantaneous increase in Power and Torque for your Twin Turbo BMW!

	Applications: • 2006+ E90 Sedan 335i / 335xi • 2006+ E91 Touring 335i / 335xi • 2006+ E92 Coupe 335i / 335xi • 2007+ E93 Convertible 335i / 335xi • 2008+ E60 Sedan 535i / 535 xi • 2008+ E61 Touring 535i / 535 xi • 2008-2010 E82 Coupe 135i • 2008-2010 E88 Convertible 135i • 2009+ BMW X6 xDrive35i • 2010+ BMW Z4 sDrive35i
Stock, Stage 1, and Stage 2 on a completely stock automatic 335i with 91 octane.

Works on all USA, Canadian & European models - 2006-Present - Twin-Turbo 6 Cylinder models
Automatic and Manual Transmissions

Click here for the install guide 135 /335