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Description
Milltek Sport BMW M3/M4 (G8X) GPF-Back Exhaust SystemMilltek Sport BMW M3 M4 (G8X) GPF Back Exhaust System Unleash the Symphony of Performance Transform your BMW M3 M4 (G8X) driving experience with the Milltek Sport GPF Back Exhaust System. Meticulously engineered to deliver a thrilling sound and enhance performance, this system is the perfect upgrade for passionate M3 M4 owners who crave a more engaging and exhilarating drive. Key Features: Enhanced Sound: Immerse yourself in a symphony of sound
Milltek Sport BMW M3/M4 (G8X) GPF-Back Exhaust System
Unleash the Symphony of Performance
Transform your BMW M3/M4 (G8X) driving experience with the Milltek Sport GPF-Back Exhaust System. Meticulously engineered to deliver a thrilling sound and enhance performance, this system is the perfect upgrade for passionate M3/M4 owners who crave a more engaging and exhilarating drive.
Key Features:
- Enhanced Sound: Immerse yourself in a symphony of sound crafted specifically for the G8X M3/M4. Enjoy a deeper, sportier exhaust note that amplifies the car’s character without excessive drone. Experience a refined growl at lower RPMs and a thrilling roar as you climb through the rev range.
- Improved Performance: Replacing the restrictive factory components from the GPF back can optimize exhaust flow, potentially leading to gains in horsepower and torque, and enhancing throttle response.
- Premium Quality: Crafted from high-grade T304 stainless steel for exceptional durability, corrosion resistance, and a polished finish that complements the M3/M4’s athletic design.
- Precision Fitment: Designed for a seamless, hassle-free installation on your G8X M3/M4 (Saloon, Coupe, Convertible, and Touring models), ensuring a perfect fit and optimal performance.
- Tailpipe Options: Choose from a variety of stylish tailpipe finishes, including Polished Stainless Steel, Cerakote Black, Burnt Titanium, and Carbon Fibre, to personalize your M3/M4’s rear end.
- Valve Control Compatibility: Retains functionality of the factory valve control system, allowing you to adjust the sound and driving experience to your preference.
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System Options: Select the perfect system for your needs and desired sound:
- GPF-Back System: Replaces the rear section of the exhaust from the GPF back, offering a great balance of sound and performance.
- Axle-Back System: Replaces only the rear muffler, providing a more subtle sound enhancement while retaining the factory GPF.
- Centre Resonator Delete: For those seeking a more aggressive sound, this option removes the centre resonator for increased volume and a deeper tone (available with GPF-back systems).
Experience the Milltek Sport Difference
The Milltek Sport GPF-Back Exhaust System is more than just an exhaust; it’s an investment in driving pleasure. With its refined sound, enhanced performance, and premium quality, this system elevates your G8X M3/M4 to a new level of driving enjoyment.
Order yours today and unleash your M3/M4’s true potential!
Please note:
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- This product may not be legal for use on public roads in all regions. Please check local laws and regulations before purchasing.
- Professional installation is recommended.
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
4.6 ★★★★★
Based on 22 reviews
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Product Reviews
★★★★★ 3
Nice but dissapointing
So it sometimes stays cool but if it’s under a blanket and you have your body on it at all it will get warm but the spots you don’t use will get cool sometimes. I am very disappointed in the material though because it’s like my dry skin scratched the pillow case all over which makes me question it and I don’t think I would buy again.
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Reviewed in the United States on December 15, 2025
★★★★★ 5
Great pillow, but the cooling effect depends on the cover
Color: Blue-ice Plus, Size: King(Pack of 2)
I really like this pillow overall. It’s comfortable, supportive, and feels well made. When you use it without a pillowcase, it definitely feels cool to the touch and does what it claims in terms of that initial cooling sensation.
However, once you put a pillowcase on it, you can’t really feel the cooling effect anymore. I’ve tried multiple different pillowcases made from different materials, and none of them really let that cool feeling come through.
That said, I still love the pillow itself. It’s comfortable and supportive enough that I’m keeping it. Just keep in mind that the cooling feature works best without a cover, which isn’t ideal for everyone.
Overall, a good pillow — just manage expectations about the cooling effect once it’s covered.
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Reviewed in the United States on February 17, 2026
★★★★★ 5
Cooling and holds shape.
Color: Blue-ice Plus, Size: Queen(Pack of 2), Color: Blue-ice Plus, Size: Queen(Pack of 2)
Very nice pillow for the price is also holding up well and holding shape very cool and comfortable to the touch. Best pillow I found in a long time.
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Reviewed in the United States on April 28, 2026
★★★★★ 5
Best Pillow Ever
Color: Blue-ice Plus, Size: Queen(Pack of 2)
Best pillow ever. Although it still gets "hot", it does take longer to get "hot". I love this pillow. I was buying a new pillow almost every 3 months. Other pillows would either remain rock hard or go flat. I was concerned at first when reading the description as I though the memory foam would be big pieces. They are soft fluffy pieces. I had to remove almost half of the foam to get the pillow to what works for me. I have not had to put any filler back in. Maybe in a couple of more months I may have to put a bit more in, but it is holding it's shape and not going flat. I do fluff it every night. This helps. I am a stomach sleeper. I have bought the expensive purple pillow and hated it so much I gave it to my daughter. This QUTOOL Pillow is the best! I bought a 2 pack. Have not used the other pillow yet, but I feel I may actually go years for once without having to buy a pillow as I have the 2nd one set aside if the first one gets to a point in need replacement. I have bought Dollar Store pillows. I have bought $300 pillows. None of them even come close to this pillow and the way you can adjust this pillow for you. The pillows came in a white mesh like bag. I keep all the unused "stuffing" in this bag. I have it hanging in my closet and I just fluff the bag once a month to keep the filling fresh so it is ready if and when I need it. Coming from someone who has trouble staying asleep, neck issues, a stomach sleeper who hate those flat pillows manufacturers think stomach sleepers like but actually hate, buy this pillow. Just buy it. Best Pillow for a picky person like me. Buy 2 or more so if you have to stay at a hotel, you can take your own pillow.
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Reviewed in the United States on June 15, 2025
★★★★★ 4
Slippery Pillow
Color: Blue-ice Plus, Size: Queen(Pack of 2)
Nice and cooling but it’s so slick my pillow sheet doesn’t want to stay on.
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Reviewed in the United States on May 14, 2026
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