I Flash ECU Software Screen Shotiflash2iflash3JZW Stg 1 comparisson to piggy back. Blue run is true ECU tune , and red run is piggy back.STG 1 Dyno Test Results 321HPStg 3 Dynojet ResultsStg 1 Dynojet resultsStg 1 air fuel graphComparison of JZW 135i Stg 1 to Cobb 335xi335-exhaust-dyno5 - Intercooler and Exhaust System003lowpsicompare

JZW I Flash Engine Management System Software


Product Description

The JZW I flash is a true ECU programmer that allows you to remotely tune your car through the OBD2 diagnostic port in your own home!
JZW Stg 1 tunes deliver significant power increases while concentrating on engine safety and drive-ability. Our software delivers a fully integrated and highly developed ECU remap. Through careful remapping of the factory DME tables, and various elements such as ignition timing, boost pressures, fuel delivery and throttle maps are remapped to create a very well rounded tune that results in smooth, strong power delivery. On a completely stock vehicle, our tune has put down 353whp and 406wtrq, that is around 400bhp and 450 ft-lbs of torque on a dynojet dyno.
Significant power gains throughout entire rpm range
Better power delivery and less lag
Removes top speed limiter
Multiple Calibrations available, 91 octane, 93 octane and even full on race gas
The ability to return to stock at any time is a great feature when visiting the dealer
The JZW BMW I flash is available for all N54 Engine set-ups, this includes the 135i, 1M, 335i, 335is and the Z4 series.
Contact JZW Tuning for more information at 303-656-1611, or via email at

BMW I Flash Instructions

Software Download

Click the following link to download the JZW I-Flash Software and software updates. Software download