Quote:
Originally Posted by AM4ZING
Techinically same as BMS JB4 only hooked up on Stage 1?
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Stage 1 is a boost adder tune. It adds boost on all RPM, prefect for a stock car looking for more power.
JB4 is a complete tune, it controls boost by RPM. Gives you much more flexibility and features ( datalogging, read and delete codes, max boost per gear,etc...)
If you are keeping your car stock, get the stage 1.
If you plan on getting catless DP in the future get the JB4.