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Ships within 48 hours · Estimated delivery Aug 12 - Aug 17
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Description
AMS Alpha 3" Stainless Steel Downpipes w/ Catalytic Converter | BMW M5 F10 4.4L Bi-TurboThe AMS Alpha M5 Downpipes are the ultimate solution for improving power, throttle response and exhaust note without sacrificing quality, fitment or design. Each Alpha M5 Downpipe features a smooth transition from their massive 3. 5" inlet down to the 3" tubing for optimum flow. While competitors choose a very short transition length which creates turbulence and hurts exhaust flow and power, the AMS Engineering team implemented a longer length to give
The AMS Alpha M5 Downpipes are the ultimate solution for improving power, throttle response and exhaust note without sacrificing quality, fitment or design. Each Alpha M5 Downpipe features a smooth transition from their massive 3.5" inlet down to the 3" tubing for optimum flow. While competitors choose a very short transition length which creates turbulence and hurts exhaust flow and power, the AMS Engineering team implemented a longer length to give your M5 maximum output.These downpipes are properly designed and engineered using a CMM Laser Scanner for a perfect fit and space optimization. AMS took the time to integrate the factory O2 sensors, heat shielding and brackets for a clean and proper OEM-like installation. Another unique benefit is the racing catalytic converter. These 300 cell count units provide nearly no disruption in flow and feature a staked in design to hold the catalyst firmly in place.
Features:
- .065" thick, 100% 304 stainless steel tubing
- Big increases in power throughout the powerband
- Improved turbo & throttle response
- Premium 300 cell race catalytic converters
- Exotic exhaust note
- Massive 3.5" primary inlets
- Precise and proper fitment using factory heat shielding
- Includes ALL necessary parts and hardware for installation
- BMW M5 (F10) 4.4L Bi-Turbo 12-16
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
4.3 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 4
Cute but not hinged at arms
Color: Porcini Tortoise, Size: 52-17-140
They were cute. I didn’t like that they weren’t hinged. They were harder to open and close. I didn’t look for this feature before I purchased.
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Reviewed in the United States on February 3, 2026
★★★★★ 5
Anteojos modernos.
Color: Blush Tortoise, Size: Lens-52 Bridge-17 B-37.5 ED-56.1 Temple-140, Color: Blush Tortoise, Size: Lens-52 Bridge-17 B-37.5 ED-56.1 Temple-140
Mis lentes son muy cómodos, y me gustan como lucen, vienen sin medidas yo los adecué con mi Optometrista.
Se aflojan con el tiempo, pero compré una pinza que ajusta los tornillos…realmente lucen como nuevos.
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Reviewed in the United States on January 20, 2026
★★★★★ 5
The glasses are made well
Color: Pearl Brown Tort, Size: 53-16-135
The glasses fit well and are made well. They are Great value for the money.
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Reviewed in the United States on November 24, 2024
★★★★★ 5
Hotel quality, budget friendly
Size: King, Style: Light
I’ve only used this for several nights. Overall I’m pretty happy with it, especially for the price. It is soft to the touch and has a nice, smooth feel. It’s lightweight but still provides enough warmth for mild to cool nights. I don’t like feeling weighed down when I sleep, so the light fill is actually a big plus for me. If you’re someone who sleeps hot, this is a solid choice. The corner tabs are super helpful. I paired it with a duvet cover and haven’t had issues with shifting or bunching. It also fits my bed well, though I could see it being a bit short on the sides if you have a very thick mattress. This is a great budget-friendly option and seems like it will be easy to maintain.
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Reviewed in the United States on September 19, 2025
★★★★★ 5
A Great Comforter for Everyday Use
Size: Full/Queen, Style: All-Season
I absolutely love this comforter! I love the fact it’s machine washable, and it held up really well after the first wash. It fluffed back up nicely, stayed soft, and didn’t lose its shape. It’s not too heavy but still cozy enough to keep you comfortable. For the price, the quality exceeded my expectations, and I am very happy with this purchase. I highly recommend 😊
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Reviewed in the United States on June 4, 2026
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