Stage One BMW Speaker Upgrade for E90 Sedan with Standard Hi-Fi 4 SERIES Coil power wires are sold

Coil power wires are sold in packs of 6 so you get all new power wires for each cylinder every time

not by checking the production date of your vehicle chassis

Our Stage 3 bucketed module will add a 450 pump to your existing PR Stage 2 or 2

Aftermarket EKP Required: Yes

Stage One BMW Speaker Upgrade for E90 Sedan with Standard Hi-Fi 4 SERIES Coil power wires are soldGET 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