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Description
STEG BM45CII component speakers for BMWOEM fit 4" component speakers upgrade for BMW cars. A set of two midrange speakers, two tweeters and Plug&Play harness including filters. Used where tweeter grilles are available or can be added with a car specific trim piece. Compatible cars: 1 series E81 3 door Hatchback 2007 2012 : front doors (minor adjustment may be required) 1 series E82 Coupe 2007 2013 : front doors (minor adjustment may be required) 1 series E87 5 door Hatchback 2007 2011 :
OEM fit 4" component speakers upgrade for BMW cars. A set of two midrange speakers, two tweeters and Plug&Play harness including filters.
Used where tweeter grilles are available or can be added with a car-specific trim piece.
Compatible cars:
- 1-series E81 3-door Hatchback 2007-2012 : front doors (minor adjustment may be required)
- 1-series E82 Coupe 2007-2013 : front doors (minor adjustment may be required)
- 1-series E87 5-door Hatchback 2007-2011 : front doors (minor adjustment may be required)
- 1-series E88 Cabrio 2004-2011 : front doors and rear panels (minor adjustment may be required)
- 1-series F20 5-door Hatchback 2011-2019 : front doors
- 1-series F21 3-door Hatchback 2012-2019 : front doors
- 1-series F40 5-door Hatchback 2019- : front and rear doors
- 1-series F52 Limousine 2017- : front doors
- 2-series F22 Coupe 2014-2021 : front doors
- 2-series F23 Cabrio 2015- : front doors and rear panels
- 2-series F44 Grand Coupe 2019- : front and rear doors
- 2-series F45 Active Tourer 2014-2021 : front doors and rear panels
- 2-series F46 Gran Tourer 2015- : front doors and rear panel
- 2-series F87 M2 coupe 2015- : front doors
- 3-series E90 Limousine 2005-2011 : front and rear doors (minor adjustment may be required)
- 3-series E91 Estate 2005-2011 : front and rear doors (minor adjustment may be required)
- 3-series E92 Coupe 2005-2011 : front doors and rear panels (minor adjustment may be required)
- 3-series E93 Cabrio 2005-2011 : front doors and rear panels (minor adjustment may be required)
- 3-series F30 Limousine 2011-2018 : front and rear doors
- 3-series F31 Estate 2012-2019 : front and rear doors
- 3-series F34 Gran Turismo 2013- : front and rear doors
- 3-series F80 M3 2014-2018 : front and rear doors
- 3-series G20 Limousine 2018- : front and rear doors
- 3-series G21 Estate 2019- : front and rear doors
- 4-series F32 Coupe 2013-2020 : front doors and rear panels
- 4-series F33 Cabrio 2014-2020 : front doors and rear panels
- 4-series F36 Gran Coupe 2014-2021 : front and rear doors
- 4-series F82 Coupe 2014-2020 : front doors and rear panels
- 4-series F83 Cabrio 2014-2020 : front doors and rear panels
- 4-series G22 Coupe 2020- : front doors and rear panels
- 4-series G23 Cabrio 2020- : front doors and rear panels
- 4-series G26 Gran Coupe 2021- : front and rear doors
- 4-series G82 M4 2020- : front doors and rear panels
- 4-series G83 M4 Cabrio 2021- : front doors and rear panels
- 5-series F10 Limousine 2010-2017 : front and rear doors (minor adjustment may be required)
- 5-series F11 Estate 2010-2017 : front and rear doors (minor adjustment may be required)
- 5-series G30 Limousine 2017-2020 : front and rear doors
- 5-series G31 Estate 2017-2020 : front and rear doors
- 6-series E63 Coupe 2003-2010 : front doors and rear panel (minor adjustment may be required)
- 6-series E64 Cabrio 2004-2010 : front doors and rear panel (minor adjustment may be required)
- 6-series F06 Gran Coupe 2012-2018 : front and rear doors
- 6-series F12 Coupe 2011-2018 : front doors and rear panel (minor adjustment may be required for the rear panel location)
- 6-series F13 Cabrio 2011-2018 : front doors and rear panel (minor adjustment may be required for the rear panel location)
- 6-series G32 Gran Coupe 2017-2020 : front and rear doors
- 7-series G11 Limousine 2015- : front and rear doors
- i3 2013- : front and rear doors
- i8 2013-2020 : front doors
- X1 E84 SUV 2009-2015 : front doors (minor adjustment may be required)
- X1 F48 SUV 2015- : front and rear doors
- X2 F39 SUV 2018- : front and rear doors
- X3 F25 SUV 2010-2017 : front and rear doors
- X3 G01 SUV 2017- : front and rear doors
- X4 F26 SUV 2014-2018 : front and rear doors, rear fill
- X4 G02 SUV 2018- : front and rear doors
- X5 G05 SUV 2018- : front and rear doors
- X6 G06 SUV 2019- : front and rear doors
- Z4 G29 Cabrio 2018- : front doors
- Mini Clubman F54 2015- : front and rear doors
- Mini 5-door Hatchback F55 2014- : front and rear doors
- Mini 3-door Hatchback F56 2014- : front doors
- Mini Cabrio F57 2016- : front doors
What's included:
- 2x Midrange speakers
- 2x Tweeters with integrated filters
- 2-piece plug&play wiring harness with filters
- 2x tweeter adapters
- 1x Instructions
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 2287 reviews
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Product Reviews
★★★★★ 5
Tired of bad sleep try this pillow :)
Size: Sapphire Queen
Never owned a nice or expensive pillow finally after a good 25 years of super cheap pillows finally decided to try a nice one and see if there is a big difference and see what all the woot is about anyways in my opinion I am a side sleeper and I now just use this instead of multiple pillows and I can safely say it works very well seems too cool a little and is very comfortable plus bonus they give you extra fluff if you want to add more or replace but straight out of the box was absolutely perfect for sleeping I am insanely picky about it will ABSOLUTELY BUY THIS AGAIN 🥰🥰🥰 firmness absolutely perfect as is
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Reviewed in the United States on March 29, 2026
★★★★★ 1
Flattened out a little over a month or using it
Size: Sapphire Queen
Figured I would wait a month or 2 before leaving a review. At first. The pillow was great. Very comfortable. Held up nice. Nice and firm and gave great support. After a month. It started to flatten out. Had to re-fluff it only to have flatted out faster this time. Now no matter how many times I fluff it. It doesn’t give the proper support any longer. I’ve bought 2 of these and they are identical. So it can’t be just a fluke for the 2 i have. I’m regretting the purchase as the price was fair when I bought them. But not any longer as they are not the same.
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Reviewed in the United States on January 26, 2026
★★★★★ 5
Amazing - Stop Scrolling and Buy This Pillow
Size: Queen (Pack of 1), Color: White
I have been an Amazon customer ever since the very beginning, and this is my first review. Not because I haven’t purchased tons of amazing things (and a few bad ones), just never felt the need.
However, I researched pillows for longer than I care to admit, and decided on this one.
I’ve had it for about six months and absolutely love it. No lie, I genuinely look forward lying my big head on it after a long day.
I am a side sleeper, but flip flop all around through the night and it’s great in every position.
Pros:
Stays nice and cool, which is soothing regardless of the time of year.
Has a sort of quilted textured pattern on the zip up cover, gives it a luxury feel, that breaths nicely even when a pillow case is added.
The fill is fully adjustable to your preference.
I knew it came with extra filling but was worried it would not be enough. Wrong. It was very full and I ended up taking some out until it was perfect.
It comes vacuum sealed and suggests it may take some time to fully take shape. However, I found it to be about 90% almost instantly and was sleeping on it a couple hours later.
There was no unpleasant scent sometimes associated with memory foam items.
The foam itself is very nice, a mix of what appears to be shredded and cotton candy cloud like. Very brilliant idea, as it is somehow supportive, soft and firm all at once.
The affordability of this pillow compared to some of the others in this category can’t be overstated.
Oh, and the packaging was very thoughtfully and securely done.
If you are like me, an over thinker, I would suggest just taking this for a spin. It’s amazing.
I’m not a bot, or working for the company. I’m just truly satisfied, love this pillow, and have been sleeping great.
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Reviewed in the United States on April 6, 2026
★★★★★ 5
It's the perfect pillow!
Size: Queen (Pack of 1), Color: White
I purchased this pillow specifically for its customizable fill feature, which allows you to add or remove stuffing to suit your personal comfort needs. Due to the unique curvature of my cervical spine—forward at the neck rather than backward—I require a soft, semi-flat pillow rather than one that is thick or firm. Additionally, I often experience ear discomfort by morning, so a gentler surface is essential.
Upon adjusting the fill, I was pleasantly surprised by the generous amount of stuffing included. There was enough to fill an additional pillowcase, and I estimate it could easily create four to five more pillows. The ability to modify the pillow’s firmness at any time is an outstanding feature that makes it adaptable for a wide range of preferences and sleep styles.
This pillow has exceeded my expectations in both comfort and versatility. I highly recommend it to anyone seeking a personalized sleep experience.
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Reviewed in the United States on February 1, 2026
★★★★★ 4
Good quality pillows overall
Size: King (Pack of 2), Color: White
Got a set of these for my wife and myself as we were struggling with our old pillows. These have some really good qualities and some things we'd like to see changed.
First, the good: These are look and feel like they are high quality and made with good materials. The foam itself has a very nice feel to it. We love the fact they are adjustable to add or remove foam. They come with a pretty substantial amount already in the pillow. We appreciate the CertiPur certification.
Now the improvements or changes we'd like to see: The foam, while feeling great, doesn't bounce back well if you scrunch your pillows, and so every day you have to fluff and reshape the pillow, moreso than some other memory foam pillows we've owned. One side of the pillow is cooled and you can feel that even through the pillow case, and that's a great thing. However, one side is not cooled and we'd have preferred if both sides were made of the cooling material.
Overall, these are good pillows and we are not disappointed with the purchase. They are not, however, our perfect pillows (which do seem hard to find), and at some point in the future will probably make their way to the guest bedroom. We would rate them as some of the better pillows we've tried and feel most people would probably like them.
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Reviewed in the United States on December 19, 2025