Quote:
Originally Posted by zosoboogie
I am reading that many are waiting for someone to crack the code for a tune. But that can take years.
I get that the JB4 is a piggyback however how does it differ from a tune? Are there any negatives for a piggyback over a tune? Is it worth the wait?
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There are many things that are different between a true flash and a piggyback. I'll name a couple:
Main benefits of Flash:
Infinite adjustiblility of fuel
Infinite adjustiblility of timing
Change actual boost parameters (rather than scale)
Negligible install and flash back to stock times
Main benfits of Piggy:
Logging ability
ECU never sees increased numbers over stock (that we know of)
Safe assuming you follow directions
Increase boost
This answer is not scientific, but rather is just a generic one of the main points I have at the moment. My suggestion would be to run both. Many people in the n54/n55 world are having tons of success with that by having the flash do the brunt of the work and having the JB4 logging and controlling other variables such as water/meth injection.