BMW F/G Generation All Models BMW 4-Ohm Underseat Subwoofer Upgrade Kit | For 4-Ohm Systems view 1
BMW F/G Generation All Models BMW 4-Ohm Underseat Subwoofer Upgrade Kit | For 4-Ohm Systems view 1
BMW F/G Generation All Models BMW 4-Ohm Underseat Subwoofer Upgrade Kit | For 4-Ohm Systems view 2
BMW F/G Generation All Models BMW 4-Ohm Underseat Subwoofer Upgrade Kit | For 4-Ohm Systems view 2
BMW F/G Generation All Models BMW 4-Ohm Underseat Subwoofer Upgrade Kit | For 4-Ohm Systems view 3
BMW F/G Generation All Models BMW 4-Ohm Underseat Subwoofer Upgrade Kit | For 4-Ohm Systems view 3
HELIX FlexMount CFMK200 BMW.1S included in the Soundtech BMW F/G Generation All Models package
HELIX FlexMount CFMK200 BMW.1S included in the Soundtech BMW F/G Generation All Models package
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BMW F/G Generation All Models BMW 4 ohm Underseat Subwoofer Upgrade Kit | For 4 ohm Systems 102575

SKU: 102575
Price
$715
Inc. GST. Most orders ship Australia wide for a flat $15.95. Larger or heavier items may cost more.
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Shipping information

Australia wide flat rate shipping is $15.95. Larger or heavier items may cost more; we will confirm when your order is processed. In stock items are dispatched within 1 to 2 business days. Report transit damage within 24 hours with photos so we can lodge a freight claim.

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BMW F/G Generation All Models BMW 4-Ohm Underseat Subwoofer Upgrade Kit | For 4-Ohm Systems view 1

BMW F/G Generation All Models BMW 4 ohm Underseat Subwoofer Upgrade Kit | For 4 ohm Systems 102575

$715

Product features

Soundtech put this bmw 4-ohm underseat subwoofer upgrade kit together for the BMW F/G Generation All Models with the basic (non premium) sound system. Every part is picked for this car, and the full parts list is below so you and your installer know exactly what turns up before any trim comes off.

What is in the package

  • 1 x HELIX Ci5 S200FM-D2, 8" Subwoofer Pair, FlexMount, 2x2Ω
  • 1 x HELIX FlexMount CFMK200 BMW.1S, 8" Polymer-Metal Subwoofer Adapter for BMW and Mini, Pair

Parts list as set up on the Soundtech package listing, checked 9 November 2026.

Fitment

Vehicle BMW F/G Generation All Models
Factory sound system Basic (non premium) sound system
System For 4-Ohm Systems

Soundtech does not list model years for this package. If you are not sure your car matches, send us the VIN or build date and we will check before you order.

Installation and tuning

Soundtech lists its plug and play packages mainly for dealer and professional installation, although MATCH based packages can suit a confident DIY installer.

Warranty

Soundtech, the Australian distributor, gives its products a standard 12 month Australian warranty. That is on top of your rights under the Australian Consumer Law.

Frequently asked questions

Will this suit my car?

It is made for the BMW F/G Generation All Models with the basic (non premium) sound system. If you are not sure about your build or factory audio, send us the VIN and we will check.

What comes in the package?

1 x HELIX Ci5 S200FM-D2; 1 x HELIX FlexMount CFMK200 BMW.1S. The full descriptions are in the parts list above.

What warranty does it have?

Soundtech gives a standard 12 month Australian warranty, on top of your rights under the Australian Consumer Law.