Thanks for your reply. Can you give any insight why or how your stock Emira shows essentially 434bhp on base map when others show right around 400bhp +/- a couple hp. This is on stock maps! Also, what is the max boost on your 93-octane setting from stock boost. Never really considered RennTech or TDI as "very rudimentary" they are major players in the market placeSimple way to put it, we are a much more advanced tuning system vs the latter. No other piggyback will ever come close to what the JB4 system offers, they use a very rudimentary way of doing things.
![]()
JB4 Frequently Asked Questions
The differences between a JB4 vs flash tune and JB4 vs racechip explained in depth.burgertuning.com

Thank you
Last edited: