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2011 BMW 3 Series

Universal gear includes car amplifiers, subs, and other products that do not install in a specific location or require fitment to integrate with a vehicle.

Universal-Fit Audio for 2011 BMW 3 Series

When thinking of universal gear, we consider products like a car amp that gives more power to your speakers or subs, cell phone chargers, equalizers and sound processors, rear-seat entertainment and video monitors, as well as dash cameras.

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Infinity REF757T (INFSPKRF757TUS)

270W Peak (90W RMS) 3/4" Reference Series 3-ohm Dome Tweeters

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270W Peak (90W RMS) 3/4" Reference Series 3-ohm Dome Tweeters

• 3/4" Reference Series Edge Driven Dome Tweeters
• 135 watts Peak Each
• 45 watts RMS Each
• 3 ohm Impedance

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Install kits available for most vehicles

Fits select models only.
Add details to confirm fitment.
1
List price $139.95
-21% $109.95 /pair

In stock

Infinity REF-375TX

270W Peak (90W RMS) 0.75" Reference Series Car Tweeters

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270W Peak (90W RMS) 0.75" Reference Series Car Tweeters

• 3/4" Reference Series Car Tweeters
• Edge-Driven Textile Tweeter
• 270W Max
• 90W RMS
• 3 ohm Impedance

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Free or discounted install kits when available.

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Add details to confirm fitment.
List price $130.00
-23% $99.95 /pair

In stock

Like New from: $84.96

Massive Audio FT1

200W Peak (100W RMS) 0.78" FT Series 4-ohm Dome Tweeters

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200W Peak (100W RMS) 0.78" FT Series 4-ohm Dome Tweeters

• 13/16" FT Series Tweeters
• 100 watts Peak Each
• 50 watts RMS Each
• 4 ohm Impedance

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Install kits available for most vehicles

additional information required
Fits select locations in your 3 Series.
Add vehicle details to confirm exact location.
List price $69.99
-21% $54.99 /pair

Available

Ships in 10-14 days

• 13/16" FT Series Tweeters
• 100 watts Peak Each
• 50 watts RMS Each
• 4 ohm Impedance

JL Audio M6-100CT-C/S-GmTi

300W Peak (150W RMS) 1" M6 Series Component 4-ohm Tweeters (Sport Gray)

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300W Peak (150W RMS) 1" M6 Series Component 4-ohm Tweeters (Sport Gray)

• 1" M6 Series Tweeters
• 150 watts Peak Each
• 75 watts RMS Each
• 4 ohm Impedance

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Install kits available for most vehicles

additional information required
Fits select locations in your 3 Series.
Add vehicle details to confirm exact location.
List price $249.99
-8% $229.99 /pair

Available

Ships in 10-14 days

• 1" M6 Series Tweeters
• 150 watts Peak Each
• 75 watts RMS Each
• 4 ohm Impedance

JL Audio M6-100CT-C/S-GwGm

300W Peak (150W RMS) 1" M6 Series Component 4-ohm Tweeters (Sport Gray)

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300W Peak (150W RMS) 1" M6 Series Component 4-ohm Tweeters (Sport Gray)

• 1" M6 Series Tweeters
• 150 watts Peak Each
• 75 watts RMS Each
• 4 ohm Impedance

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Install kits available for most vehicles

additional information required
Fits select locations in your 3 Series.
Add vehicle details to confirm exact location.
$229.99 /pair

Available

Ships in 10-14 days

• 1" M6 Series Tweeters
• 150 watts Peak Each
• 75 watts RMS Each
• 4 ohm Impedance

Cerwin-Vega HTAK

600W Peak (70W RMS) 0.75" HED Series 4-ohm Silk Dome Tweeters

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600W Peak (70W RMS) 0.75" HED Series 4-ohm Silk Dome Tweeters

• 3/4" HED Series Balanced Dome Tweeters
• External crossover included
• 300 watts Peak Each
• 35 watts RMS Each
• 4 ohm Impedance

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Install kits available for most vehicles

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Add details to confirm fitment.
$67.99 /pair

Available

Ships in 10-14 days

• 3/4" HED Series Balanced Dome Tweeters
• External crossover included
• 300 watts Peak Each
• 35 watts RMS Each
• 4 ohm Impedance

DS18 PRO-SDF8

8" Square Bolt-on Midrange Speaker Diffuser Horn

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8" Square Bolt-on Midrange Speaker Diffuser Horn

• 8" loudspeaker horn diffuser
• Comes with 4-M4 Nut-Inserts
• Bolt-on installation type
• 90° rounded sound coverage
• Made with durable ABS plastic

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Fits your 3 Series
List price $71.99
-17% $59.95

In stock.

• 8" loudspeaker horn diffuser
• Comes with 4-M4 Nut-Inserts
• Bolt-on installation type
• 90° rounded sound coverage
• Made with durable ABS plastic

Install Bay IBBAF42

4" Round Shallow Foam Acoustic Speaker Baffles

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4" Round Shallow Foam Acoustic Speaker Baffles

• Shallow Speaker Baffles
• For 4" Speakers
• Made from a Waterproof Foam
• Greatly Enhances the Sound and Performance of the Speakers
• Reduces Panel Vibration

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2
List price $13.99
-14% $11.99

Available

Ships in 10-14 days

• Shallow Speaker Baffles
• For 4" Speakers
• Made from a Waterproof Foam
• Greatly Enhances the Sound and Performance of the Speakers
• Reduces Panel Vibration

Cerwin-Vega HT34

100W Peak (40W RMS) 0.75" HED Series 2025 Edition 4-ohm Tweeters

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100W Peak (40W RMS) 0.75" HED Series 2025 Edition 4-ohm Tweeters

• 3/4" HED Series Tweeters
• 50 watts Peak Each
• 20 watts RMS Each
• 4 ohm Impedance

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Install kits available for most vehicles

Fits select models only.
Add details to confirm fitment.
$79.99 /pair

In stock.

Boom Mat 050310

4" Round Speaker Baffles

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4" Round Speaker Baffles

• 4" Round Speaker Baffles
• Maximizes speaker performance
• Dampens vibrations easily
• Water-tight shell for added protection
• Baffle Material: Polyethylene
• Dimensions: 6" W x 6" H x 3.5" D

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$17.99

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Ships in 10-14 days

• 4" Round Speaker Baffles
• Maximizes speaker performance
• Dampens vibrations easily
• Water-tight shell for added protection
• Baffle Material: Polyethylene
• Dimensions: 6" W x 6" H x 3.5" D

Infinity REF-375TX (Like New (Open Box))

270W Max (90W RMS) 3/4" Reference Series Car Tweeters

REF375TX big
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270W Max (90W RMS) 3/4" Reference Series Car Tweeters

• 3/4" Reference Series Car Tweeters
• Edge-Driven Textile Tweeter
• 270W Max
• 90W RMS
• 3 ohm Impedance

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Free or discounted install kits when available.

Fits select models only.
Add details to confirm fitment.
List price $130.00
-35% $84.96 /pair

In stock

Only 1 Left!

NVX XBAF8 (Open Box, Great)

2 Piece Universal 8” Silicone Rubber Speaker Baffles with Self Adhesive Foam Base Pad

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2 Piece Universal 8” Silicone Rubber Speaker Baffles with Self Adhesive Foam Base Pad

• Foldable Silicone with egg crate foam
• Creates a tight seal around your speaker for optimum sound quality
• Waterproof material
• The foam baffles from the competitors will deteriorate over time, while the rubber XBAF8's will last a lifetime

shipping truck icon Free shipping in USA. Provide zip for delivery date.
Fits select models only.
Add details to confirm fitment.
List price $29.99
-53% $13.99

In stock

• Foldable Silicone with egg crate foam
• Creates a tight seal around your speaker for optimum sound quality
• Waterproof material
• The foam baffles from the competitors will deteriorate over time, while the rubber XBAF8's will last a lifetime

NVX XBAF8 (Open Box, Good)

2 Piece Universal 8” Silicone Rubber Speaker Baffles with Self Adhesive Foam Base Pad

XBAF8 big
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2 Piece Universal 8” Silicone Rubber Speaker Baffles with Self Adhesive Foam Base Pad

• Foldable Silicone with egg crate foam
• Creates a tight seal around your speaker for optimum sound quality
• Waterproof material
• The foam baffles from the competitors will deteriorate over time, while the rubber XBAF8's will last a lifetime

shipping truck icon Free shipping in USA. Provide zip for delivery date.
Fits select models only.
Add details to confirm fitment.
List price $29.99
-33% $19.99

In stock

• Foldable Silicone with egg crate foam
• Creates a tight seal around your speaker for optimum sound quality
• Waterproof material
• The foam baffles from the competitors will deteriorate over time, while the rubber XBAF8's will last a lifetime

NVX XBAF8 (Like New (Open Box))

2 Piece Universal 8” Silicone Rubber Speaker Baffles with Self Adhesive Foam Base Pad

XBAF8 big
Go to item page Right Arrow Icon of Right Arrow

2 Piece Universal 8” Silicone Rubber Speaker Baffles with Self Adhesive Foam Base Pad

• Foldable Silicone with egg crate foam
• Creates a tight seal around your speaker for optimum sound quality
• Waterproof material
• The foam baffles from the competitors will deteriorate over time, while the rubber XBAF8's will last a lifetime

shipping truck icon Free shipping in USA. Provide zip for delivery date.
Fits select models only.
Add details to confirm fitment.
List price $29.99
-35% $19.54

In stock

• Foldable Silicone with egg crate foam
• Creates a tight seal around your speaker for optimum sound quality
• Waterproof material
• The foam baffles from the competitors will deteriorate over time, while the rubber XBAF8's will last a lifetime

NVX FRING4 (Open Box, Good)

2 Piece 4" Self-Adhesive Foam Speaker Ring Baffle Kit

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2 Piece 4" Self-Adhesive Foam Speaker Ring Baffle Kit

• Acoustically seals speakers for better sound performance
• Prevents front and rear wave cancellation
• Reduces panels vibrations
• Easy peel and stick installation

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found car based on your search
Fits your 3 Series
List price $18.99
-72% $5.39

In stock

Only 3 Left!

• Acoustically seals speakers for better sound performance
• Prevents front and rear wave cancellation
• Reduces panels vibrations
• Easy peel and stick installation

NVX XBAF8 Premium Speaker Accessory Kit

2 Piece Universal 8” Silicone Rubber Speaker Baffles with Self Adhesive Foam Base Pad + NVX SDBSK2 Premium Sound Damping

XBAF8_SDBSK2_ACC_KIT big
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2 Piece Universal 8” Silicone Rubber Speaker Baffles with Self Adhesive Foam Base Pad + NVX SDBSK2 Premium Sound Damping

• Foldable Silicone with egg crate foam
• Creates a tight seal around your speaker for optimum sound quality
• Waterproof material
• The foam baffles from the competitors will deteriorate over time, while the rubber XBAF8's will last a lifetime

shipping truck icon Free shipping in USA. Provide zip for delivery date.
Fits select models only.
Add details to confirm fitment.
49
List price $48.73
-26% $35.99

In stock

NVX XBAF8 Baffle Accessory Kit

2 Piece Universal 8” Silicone Rubber Speaker Baffles with Self Adhesive Foam Base Pad + 1.38 Square Feet of Sound Damping (Two 10" x 10" Pieces)

XBAF8_SDSK2_BACC_KIT big
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2 Piece Universal 8” Silicone Rubber Speaker Baffles with Self Adhesive Foam Base Pad + 1.38 Square Feet of Sound Damping (Two 10" x 10" Pieces)

• Foldable Silicone with egg crate foam
• Creates a tight seal around your speaker for optimum sound quality
• Waterproof material
• The foam baffles from the competitors will deteriorate over time, while the rubber XBAF8's will last a lifetime
• Includes Sound Damping

shipping truck icon Free shipping in USA. Provide zip for delivery date.
Fits select models only.
Add details to confirm fitment.
49
List price $48.73
-26% $35.99

In stock

NVX FRING4 Basic Speaker Accessory Kit

2 Piece 4" Self-Adhesive Foam Speaker Ring Baffle Kit with 1.38 Square Feet of Sound Dampening Material (Two 10" x 10" Pieces)

FRING4_SDSK2_ACC_KIT big
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2 Piece 4" Self-Adhesive Foam Speaker Ring Baffle Kit with 1.38 Square Feet of Sound Dampening Material (Two 10" x 10" Pieces)

• Acoustically seals speakers for better sound performance
• Prevents front and rear wave cancellation
• Reduces panels vibrations
• Easy peel and stick installation

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 3 Series
51
List price $37.73
-34% $24.99

In stock

NVX FRING4 4" Speaker Installation Kit

Includes : 2 Piece Foam Speaker Rings, Door Panel Removal Kit, Sound Deadening and Roller

FRING4, SDSK2, SDRLR1, BTK106 big
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Includes : 2 Piece Foam Speaker Rings, Door Panel Removal Kit, Sound Deadening and Roller

• 2pc Foam Speaker Ring Kit for 4" Drivers with Egg Crate Foam Base
• Creates a tight seal around your speaker for optimum sound quality
• Egg crate foam base helps absorb unwanted echoes and reverberation
• Compatible with 4" speakers
• Reduce door panel vibration

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found car based on your search
Fits your 3 Series
222
List price $71.71
-34% $47.65

In stock

• 2pc Foam Speaker Ring Kit for 4" Drivers with Egg Crate Foam Base
• Creates a tight seal around your speaker for optimum sound quality
• Egg crate foam base helps absorb unwanted echoes and reverberation
• Compatible with 4" speakers
• Reduce door panel vibration

NVX FRING4 Basic Speaker Installation Kit

2 Piece 4" Self-Adhesive Foam Speaker Ring Baffle Kit + 2 Sheets Sound Dampening Material and Roller with 6 Piece Removal Tool Kit

FRING4_K2_R1_06_INST_KIT big
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2 Piece 4" Self-Adhesive Foam Speaker Ring Baffle Kit + 2 Sheets Sound Dampening Material and Roller with 6 Piece Removal Tool Kit

• Acoustically seals speakers for better sound performance
• Prevents front and rear wave cancellation
• Reduces panels vibrations
• Easy peel and stick installation

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 3 Series
222
List price $71.71
-33% $47.99

In stock

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    FAQ for Universal-Fit Audio & Electronics in 2011 3 Series

    Q: Can I upgrade or change the Universal-Fit Audio & Electronics in 2011 BMW 3 Series?

    A: Yes this page includes all the best Universal-Fit Audio & Electronics that work in your 3 Series.

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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

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