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HI guys,
Ok, educate me because I know very little about these things.
I have a stock 2014 Z4 28i.
I read that the JB4 is easy to install. Can a novice really install it?
My car produces 254 horses stock. How much more power can I expect from the JB4?
I don't want to install anything else (mechanical like coolers, or intakes) because this is a lease. So, by installing this JB4, is it reversible? Can I remove this tuner and drive the car to the dealer for service with no concerns for warranty issues?
If I purchase a JB4, selling in the US for about $300... and install it myself, do I need to bring it to a Dyno Tune place?
I know some of these questions may seem elementary, but I know little about tuning more power from an engine.
Thanks guys.
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