Description
Helix Ci5 S200FM-S2 BMW Under-Seat Subwoofer Upgrade Kit
Everything you need to replace the factory under-seat subwoofers in your BMW or MINI with a pair of Helix Compose Ci5 S200FM-S2, in one kit. Helix designed the Ci5 S200FM specifically for BMW under-seat locations: it has the cone area of a typical 8″ subwoofer but an installation depth of only 47 mm, so it fits where the originals were.
The kit includes the matching Helix CFMK200 BMW.1S FlexMount adapter rings. They are shaped for the BMW and MINI under-seat mounting, come with the seals already fitted, and have a moulded-in terminal that takes the original BMW wiring plug, so there is no cutting of factory wiring. The original BMW grilles fit back over the top.
Each sub handles 200 W RMS (400 W max) at 2 Ohms and plays from 25 Hz to 500 Hz, so it gives a real step up in bass depth and control over the factory drivers. For the biggest difference, pair it with an amplifier upgrade such as our BMW plug and play amplifier kit.
Fits BMW and MINI vehicles with factory under-seat subwoofers. Not sure if your car has them, or which kit suits it? Get in touch and we’ll check for you.
Features
- 2 x Helix Compose Ci5 S200FM-S2 8″ hybrid subwoofers (1 x 2 Ohm)
- 2 x Helix CFMK200 BMW.1S FlexMount adapter rings, designed for BMW and MINI under-seat mounts
- Moulded-in terminal for the original wiring plug, no cutting of factory wiring
- Seals pre-fitted, factory grilles refit over the top
- Only 47 mm installation depth with the cone area of a typical 8″ subwoofer
- 200 W RMS / 400 W max per subwoofer, 25 Hz to 500 Hz
- Connector housings and crimp contacts included for custom wiring if needed
Full technical data is on the Product Specification and Product Data tabs.
Additional Information
Specification
Performance Specifications
Helix Ci5 S200FM-S2 BMW Under-Seat Kit
Kit contents
2 x Helix Ci5 S200FM-S2 8″ subwoofers, 2 x Helix CFMK200 BMW.1S FlexMount adapter rings, crimp contacts and housings, mounting material
Power handling RMS / max (each)
200 / 400 Watts
Impedance
1 x 2 Ohm
Frequency response
25 Hz – 500 Hz
Sensitivity
92 dB @ 2.83 V / 1 m
Fits
BMW and MINI vehicles with factory under-seat subwoofers
Order numbers
CI21804 (Ci5 S200FM-S2), CI42216 (CFMK200 BMW.1S)
Product Data
Physical Specifications: Helix Ci5 S200FM-S2 BMW Under-Seat Kit
Outer diameter (subwoofer): 195 mm / 7.68″
Installation diameter (subwoofer): 173.5 mm / 6.83″
Installation depth: 47.0 mm / 1.85″
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Delivery Information
Next working day delivery if ordered before 12:00, unless item is special order.
Helix Ci5 S200FM-S2 BMW Under-Seat Subwoofer Upgrade Kit with CFMK200 BMW.1S Adapters
A pair of Helix Compose Ci5 S200FM-S2 8″ hybrid subwoofers with the matching Helix CFMK200 BMW.1S adapter rings, for BMW and MINI models with factory under-seat subwoofers.
£309.99
Want it fitted?We can fit anything we sell at our Nottingham workshop.
Helix Ci5 S200FM-S2 BMW Under-Seat Subwoofer Upgrade Kit
Everything you need to replace the factory under-seat subwoofers in your BMW or MINI with a pair of Helix Compose Ci5 S200FM-S2, in one kit. Helix designed the Ci5 S200FM specifically for BMW under-seat locations: it has the cone area of a typical 8″ subwoofer but an installation depth of only 47 mm, so it fits where the originals were.
The kit includes the matching Helix CFMK200 BMW.1S FlexMount adapter rings. They are shaped for the BMW and MINI under-seat mounting, come with the seals already fitted, and have a moulded-in terminal that takes the original BMW wiring plug, so there is no cutting of factory wiring. The original BMW grilles fit back over the top.
Each sub handles 200 W RMS (400 W max) at 2 Ohms and plays from 25 Hz to 500 Hz, so it gives a real step up in bass depth and control over the factory drivers. For the biggest difference, pair it with an amplifier upgrade such as our BMW plug and play amplifier kit.
Fits BMW and MINI vehicles with factory under-seat subwoofers. Not sure if your car has them, or which kit suits it? Get in touch and we’ll check for you.
Features
- 2 x Helix Compose Ci5 S200FM-S2 8″ hybrid subwoofers (1 x 2 Ohm)
- 2 x Helix CFMK200 BMW.1S FlexMount adapter rings, designed for BMW and MINI under-seat mounts
- Moulded-in terminal for the original wiring plug, no cutting of factory wiring
- Seals pre-fitted, factory grilles refit over the top
- Only 47 mm installation depth with the cone area of a typical 8″ subwoofer
- 200 W RMS / 400 W max per subwoofer, 25 Hz to 500 Hz
- Connector housings and crimp contacts included for custom wiring if needed
Full technical data is on the Product Specification and Product Data tabs.
Performance Specifications
Helix Ci5 S200FM-S2 BMW Under-Seat Kit
Kit contents
2 x Helix Ci5 S200FM-S2 8″ subwoofers, 2 x Helix CFMK200 BMW.1S FlexMount adapter rings, crimp contacts and housings, mounting material
Power handling RMS / max (each)
200 / 400 Watts
Impedance
1 x 2 Ohm
Frequency response
25 Hz – 500 Hz
Sensitivity
92 dB @ 2.83 V / 1 m
Fits
BMW and MINI vehicles with factory under-seat subwoofers
Order numbers
CI21804 (Ci5 S200FM-S2), CI42216 (CFMK200 BMW.1S)
Physical Specifications
Helix Ci5 S200FM-S2 BMW Under-Seat Kit
Outer diameter (subwoofer)
195 mm / 7.68″
Installation diameter (subwoofer)
173.5 mm / 6.83″
Installation depth
47.0 mm / 1.85″
Next working day delivery if ordered before 12:00, unless item is special order.