Pay in 4 interest-free payments of $124.88 Learn more
Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
Less heat soak than aftermarket cast manifolds means proven lower IAT's
AND ENJOY EVERY NOTE: We engineered the Stage One speakers to produce higher quality sound: a wider range and more balanced reproduction of the bass and treble you are currently missing
 Each pump comes with flow calibration report showing dynamic test results and pass/fail status of critical functions
Choose your desired pressure setting or opt for a default configuration
Stage One BMW Speaker Upgrade G20/G80 3 Series with Harman Kardon F87 Less heat soak than aftermarketGET UNBELIEVABLE, CRYSTAL CLEAR SOUND. JUST BY REPLACING YOUR BMW'S SPEAKERS We took your factory BMW speakers and re engineered our upgrade for one thing: clarity. So you can simply swap your original speakers for ours without changing anything else in your audio system, and the result is smooth, natural, yet unbelievably detailed reproduction of your favorite music. PLAY YOUR MUSIC LOUDER. AND ENJOY EVERY NOTE: We engineered the Stage One speakers
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