BMW i4 6.5" Speaker Upgrade - HELIX Ci3 Door Woofer to Suit BMW i4 | 3Ω
BMW i4 6.5" Speaker Upgrade - HELIX Ci3 Door Woofer to Suit BMW i4 | 3Ω is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Order processing time
In stock items
Orders for in-stock items are processed within 1 – 5 business days (excluding weekends and holidays) after receiving your order confirmation email. You will receive another notification when your order has shipped.
Pre-order
If you have placed an order for a pre-order item, please note that your order will not be processed until the release date of the product. We will process your order and ship it to you as soon as the product becomes available.
For any questions or concerns about your pre-order feel free to contact us at any time.
Items availability
If you have ordered multiple items, including pre-order items, we will hold your order until all items are available for shipment. If you wish to receive your in-stock items sooner, please place a separate order for those items.
We may cancel your order if the item(s) is out-of-stock and is no longer available. You will receive an email if your complete order is canceled.
In the situation that part of your order is out-of-stock, we will remove the out-of-stock item(s) from your order and we will ship the remaining item(s). You will not be charged for out-of-stock items ordered, and will be informed by an email notification.
If any items in your order require customization or are on backorder, we will contact you with an estimated delivery date.
Tracking your order
Once your order has been shipped, you will receive a shipping confirmation email with a tracking number. You can use the tracking number to monitor the status of your shipment.
BMW i4 6.5" Speaker Upgrade - HELIX Ci3 Door Woofer to Suit BM...
BMW i4 6.5" Speaker Upgrade - HELIX Ci3 Door Woofer to Suit BMW i4 | 3Ω is backordered and will ship as soon as it is back in stock.
BMW i4 6.5" Speaker Upgrade - HELIX Ci3 Door Woofer to Suit BMW i4 | 3Ω
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Overhaul the acoustic presence of your all-electric luxury sedan with the BMW i4 6.5" Speaker Upgrade Package. Engineered specifically to swap out the compromised factory door woofers in the BMW i4, this targeted hardware upgrade features the precision-engineered Helix COMPOSE Ci3 series. By utilizing a highly optimized 3-Ohm impedance rating, these drivers extract increased efficiency and output directly from your original factory system, treating your cabin to deeper mid-bass response, highly defined low-mids, and pristine structural tracking—all while remaining completely hidden behind original factory door grilles.
Key Benefits
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Optimized 3-Ohm Performance: Specifically configured to sit perfectly between standard factory amplified limits, safely squeezing maximum performance and crisp dynamics out of your original electrical system.
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Helix COMPOSE Innovation: Employs Audiotec Fischer’s smart mechanical FlexMount engineering, allowing the premium 6.5" mid-bass woofers to bolt flush into the proprietary door structures of the i4.
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Enhanced Mid-Bass Control: Replaces loose factory paper drivers with lightweight, rigid composite cones that deliver fast, punchy, and completely distortion-free mid-bass response.
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Invisible Integration: Preserves the factory cabin appearance entirely, utilizing direct vehicle-matching brackets and factory-matching connector clips for a seamless, plug-like fitment.
Please Read Before Purchasing
Our Plug & Play (PnP) upgrade packages are listed primarily for dealer use and professional installation, but some may also suit confident DIY users, particularly those based on MATCH systems
Installation
This physical upgrade kit is designed for a completely non-destructive integration. The woofers feature vehicle-specific terminals that clip directly into your original factory harnesses. At MC Audio Sydney, our technicians routinely perform these specialized EV integrations at our Rockdale facility, ensuring a secure, rattle-free seal and testing the acoustic phase to perfectly match your vehicle's electric acoustic properties.
Most packages install easily, but minor modifications may be needed depending on your vehicle’s exact year and trim.
💡 Please note:
Installation fees are not included in the product price. Your nearest dealer will be happy to provide a complete quote including supply, installation, and tuning.
HELIX & MATCH DSP amplifiers in particular are premium tuning products and will deliver exceptional results when tuned by professionals.
📦 Available for online purchase through MC Audio Sydney. As a professional car audio integration specialist, MC Audio Sydney supplies genuine components and offers expert installation services in Sydney, with Australia-wide shipping available.
BMW i4 6.5" Speaker Upgrade - HELIX Ci3 Door Woofer to Suit BMW i4 | 3Ω
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