Stage One BMW Speaker Upgrade for F25/F26 X3/X4 with Standard Hi-Fi G14 850 N63 This pump can support up

This pump can support up to 1

000lb Lotus Elise - twice the performance with the same power

Aftermarket EKP Required: No

Stage 2 93 octane: up to 26% HP / 18% TQ

Stage One BMW Speaker Upgrade for F25/F26 X3/X4 with Standard Hi-Fi G14 850 N63 This pump can support upGET 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