Stage One BMW Speaker Upgrade for E90 Sedan with Individual / High End Audio BMW-F2X 114d-2012 Stage 2 ACN91 octane: 13%HP

Stage 2 ACN91 octane: 13%HP / 28% TQ

This kit is capable of supporting all BMW’s with N20 & N26 engines with supplemental fueling

AN-6 PTFE 90 degree fitting to AN6 Female Flare

The kit features 750cc* injectors standard (this flow rate is based on industry injector flow test pressure of 43

Stage One BMW Speaker Upgrade for E90 Sedan with Individual / High End Audio BMW-F2X 114d-2012 Stage 2 ACN91 octane: 13%HPGET 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