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M4
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Bavsound Stage I Speaker Upgrade
$599.00INCLUDES ABSOLUTELY
EVERYTHING YOU NEED.
SIMPLY BUY, INSTALL, AND ENJOY.Replaces every speaker in your BMW (except subs), and includes absolutely everything you need except basic tools (which you won't need if you have one of our authorized dealers complete the installation).
You get great sound with just the Stage One because it was designed from the ground up to maximize the performance of the rest of your audio system - all by itself.
So there's no need to buy anything else (such as amps, wiring, or a new head unit).100% Plug-and-Play and does not require any modifcation to fit and install the speakers. Fits exactly as if it came from the factory with an overall improved sound.
Feel free to give us a call if you have any questions.
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Performance Engine Software - BMW F2x/F3x/F4x 2, 3 and 4 Series
$999.00We're happy to offer our remote OBD-II flash performance tune for the N20/N26/N55 and B46/B48/B58 Motors found in the 2, 3 and 4-Series vehicles.
We offer the following with our performance tune: - Optimization of Boost & Wastegate Control - Part throttle ignition and full throttle ignition optimization for your octane - Part fueling and full throttle fueling optimizations - Optimization of Torque Management - Horsepower & Torque Meter Calibration (for equipped vehicles) Optional Features: - Elimination of cold start routine for quieter and smoother starts - Removed Top Speed Limiter Learn More
