SKU: 16033533823

AC Schnitzer 'Performance Upgrade' for X3 G45

Sale price$2876.40 Regular price$3196.00
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 1 - Aug 6

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Description

AC Schnitzer 'Performance Upgrade' for X3 G45Philosophy Technology Engine tuning and performance upgrades have a long tradition at AC Schnitzer. To be on the safe side, we forgo achieving the possible maximum power in favour of greater durability. Many of our performance upgrades are therefore designed to increase torque rather than horsepower. After all, torque is what you feel when, for example, you are "pressed into your seats" when moving off. Petrol The performance upgrade consists of a

Philosophy / Technology
Engine tuning and performance upgrades have a long tradition at AC Schnitzer. To be on the safe side, we forgo achieving the possible maximum power in favour of greater durability. Many of our performance upgrades are therefore designed to increase torque rather than horsepower. After all, torque is what you feel when, for example, you are "pressed into your seats" when moving off. Petrol The performance upgrade consists of a control unit for retrofitting in the vehicle. The control unit ensures that the data is processed depending on the engine speed and accelerator pedal position, and that the values ??for boost pressure, rail pressure and air mass are passed on to the standard engine control unit. The parameters are slightly increased by the AC Schnitzer performance upgrade. This achieves a model-dependent power increase of up to 20% of the engine and increases engine efficiency. During development, we check in which engine speed range the greatest increase in torque is achieved. Subsequently, the modified parameters are reduced in a controlled manner for the high-rev range above 5000 rpm. This prevents the engine from overheating during longer, fast journeys. The standard engine protection parameters are retained with the AC Schnitzer performance upgrade. In addition, the AC Schnitzer performance upgrade also features extensive additional parameters to protect the engine and drivetrain, such as cold start and overheat control.

Cold start control
The AC Schnitzer performance upgrades are only activated from approx. 1000 rpm and an oil temperature of 80°C.

Overload / overheating control
The power is automatically reduced to the standard power when the water temperature reaches 115°C.

Extensively tested
AC Schnitzer performance upgrades undergo extensive testing on racetracks, test benches, and in everyday road traffic. These tests last up to nine months and cover several tens of thousands of kilometres.

Performance upgrade installed - what about the warranty?
For all AC Schnitzer performance upgrades, AC Schnitzer provides a country-dependent warranty of up to 5 years from the date of first registration, with a mileage of up to 120,000 km, on the components moved by the engine. For M models, AC Schnitzer provides this country-dependent warranty of up to 4 years from the date of first registration and up to 80,000 km. This gives you peace of mind in the event of a problem. You can find our complete warranty conditions here.

Appraise
The parts certificate is an official document that permits the use of tuning parts on public roads under the StVZO (Road Traffic Licensing Regulations) in Germany (and several other countries). After the part described in the certificate has been installed or modified, the vehicle must be presented to an official inspection centre. The inspector will verify the correct installation and authenticity of the part and then enter the modification in the vehicle documents. The vehicle's official operating license thus remains valid. The parts certificate is part of the delivery package.

Scope of delivery:
- Control unit with software programming
- Vehicle-specific wiring harness with original plug connection
- Including component warranty: 3 years in Germany
- up to 5 years internationally
- Warranty conditions
- Aluminium badge for the engine compartment
- "efficient performance" sticker
- Performance upgrade certificate
- Certificate of authenticity
- Parts certificate

Uniqueness of the AC Schnitzer performance upgrade
- Additional control unit with programming
- "Plug & Play"
- optimised engine efficiency
- more power = improved agility
- Warranty: 3 years in Germany
- up to 5 years internationally
- Find our complete warranty terms and conditions here.
- Expert opinions for almost all performance upgrades
- Increased torque more important than horsepower
- Maximum power sacrificed to ensure engine stability and longevity
- Extensively tested
- Increased driving pleasure

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 16033533823

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4.6 ★★★★★
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Cheryl Snow
Phoenix, US
★★★★★ 5
Best one so far
Still on the never ending quest for the perfect pillow. Must say that for the price this one can't be beat. Not willing to invest a small fortune on a pillow and this one is extremely reasonable
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Reviewed in the United States on January 1, 2026
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Aimee L Smith
Los Angeles, US
★★★★★ 5
Seems like a good buy
So far happy with it. Still can't Crack my neck but not waking up w a stiff neck anymore thanks
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Reviewed in the United States on January 6, 2026
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Jacky Liu
Phoenix, US
★★★★★ 5
Really good pillows
Number of Items: 1, Number of Items: 1
I’ve been using this pillow for a while now and it’s honestly one of the most comfortable pillows I’ve tried. It has a soft, cloud-like feel but still gives enough support for my neck and shoulders. I’m a side sleeper and it keeps its shape well through the night. The material feels high quality, and it doesn’t go flat like cheaper pillows. Definitely improved my sleep quality and worth the purchase.
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Reviewed in the United States on May 12, 2026
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DPLK
San Leandro, US
★★★★★ 5
Soft AND supportive
Number of Items: 1
I knew I needed a very soft pillow - all the foam pillows I had bought recently to try to upgrade our home pilllow selection seemed ok to the touch but were still too firm once I tried them out, but recently I also had some neck pain that needed some gentle support and the old old foam pillow I had that was so very soft was losing its supportive qualities and the pain wasn’t getting better. This one seemed by description to fit the bill- very soft by the company’s own definition but also with support. I’m happy to report this is exactly as advertised- the softest foam pillow I’ve tried out of the box but also good support. Pain has improved since I started using this pillow. I would buy more if we need more pillows, it’s perfect for me and I think would be comfortable for most people. I think you just need to figure out how firm you need your pillow and also height preference . I’m an all over sleeper -back, side, even belly sometimes, so it’s fine for me, but it is a little taller compared to other pillows I’ve bought recently. I didn’t compare/try other prominent pillow brands, mostly my experience is Ikea (my daughter uses a very flat and nice foam pillow from them that is even a little pricier than this one and it works well for her), and whatever brands happen to be available at target and Costco. This price point for a name brand is reasonable, I think; I was looking at other brands way over $100, and I was willing to spend that much for something that would work long term, so this one working was great. Also, this definitely does not have any cooling effect technology, which is fine by me, but something to consider if you do like cool pillows. (Although, PSA: I recently had to throw away older foam pillows that had those cooling gel panels because the gel panels started disintegrating into sticky ooze; gross and had to throw away whole pillow because couldn’t dissociate from rest of the pillow. Sad cuz the foam part of those pillows were fine.) Anyway, if you like softer pillows but want good support, this one works well and is worth trying!!
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Reviewed in the United States on May 30, 2025
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Lori Wornom
Whiting, US
★★★★★ 4
Flatter than a regular pillow but nice and soft
Number of Items: 1
Is it softer than a typical memory foam pillow? Yes. But it’s also a lot flatter. I don’t find this pillow rebounds very well. It’s good for stomach sleepers but not so much for side sleepers. I’m a 2/3 of the night side sleeper so it’s unfortunately not my magic pillow.
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Reviewed in the United States on February 11, 2026

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