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Ships within 48 hours · Estimated delivery Jul 24 - Jul 29
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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:
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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
4.1 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
Durable toy, keeps them busy
Color: Red
our trainer said our dogs needed cognitive toys and lick toys to help them calm down. I had doubts about this toy. I was pleasantly surprised when it kept them entertained off and on throughout the day. One would take a break and the other would start batting it around and licking at it. I squished some soft treats into the stem section, crunch treats of various size into the top hole (a couple freeze dried chunks of chicken that I know wouldn't come out easily), and mashed some squishy sweet potato treats into the side holes of the top. While it did take a bit of time to prep with all the different types of treats, it really kept them entertained for a long time. They are 40 pounds and decent chewers and haven't bitten off any rubber bits. Very durable.
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Reviewed in the United States on May 8, 2026
★★★★★ 5
Favorite toy of all time
Color: Red
I have had my dog for 12 years and this is truly the BEST toy I’ve ever bought her (and I’ve bought probably hundreds). I squish the soft-style treats into the holes and it keeps her occupied for a good chunk of time. She loves it. I usually do it multiple times a day with a few different types of treats. She is an extremely aggressive chewer and has never damaged this toy. Now that she’s older I’m especially appreciate of this toy because it keeps her brain active and gives her something to do when she’s not feeling up to a walk.
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Reviewed in the United States on June 4, 2026
★★★★★ 4
Tough toy but even tougher to get clean!
Color: Red
My puppy is an aggressive chewer and he was only semi-interested in this toy. It hasn't been my favorite, either, due to it being pretty difficult to clean thoroughly. The toy is, however, very durable and its thick rubber has held up to the many bounces on hard floors and tough chew sessions it's been subjected to over the past few months.
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Reviewed in the United States on January 6, 2026
★★★★★ 5
A pup favorite and has held up well!
Color: Yellow
My adult dogs really like this treat feeder and love working to get the goodies out of it! It’s held up well over many months despite their biting and gnawing on it, so a good purchase overall. It’s also different than the usual Kongs so adds some variety to their feeder puzzle repertoire to keep up the diversity of mental stimulation.
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Reviewed in the United States on May 25, 2026
★★★★★ 3
Not tough enough
Color: Red
Finding durable chew toys for my pup is a challenge. When I placed a medium dog biscuit inside this, it kept him busy for awhile. But then I noticed small pieces of the toy around the house and discovered that he had managed to shred it. I've since discarded it and continue to search for toys guaranteed to be safe for "aggressive chewers".
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Reviewed in the United States on February 20, 2026
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