Unitronic Audi B9 S4/S5 3.0TFSI ECU Upgrade

Unitronic Audi B9 S4/S5 3.0TFSI ECU Upgrade

Marsoni

M251S

$350.00

Get it in 3 business days with 1 day shipping. Friday, May 29

Unitronic Audi B9 S4/S5 3.0TFSI ECU UpgradeFeatures Optimized Responsiveness, Smoothness, Drivability, and Comfort Unitronics ECU calibrations are engineered to improve engine response and reduce low end lag. Unitronics Performance Software has gained worldwide recognition and is well known for its broad powerband, with smooth power delivery, maximizing responsiveness and area under the curve, under normal and hard acceleration. Ignition Timing Precisely Calibrated for Higher Octane Fuel

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We offer a 30-day return/exchange service after receiving.
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Fantastic that these come in a 3 pack - I wish more chew toys did this! The base for these chew toys is pretty tough! The center & ends are hard enough to withstand both my bully mixes & my Irish wolfhound/Great Dane cross. They’re safe enough for even the largest power chewers! (With Supervision) my American Bully got the rubber spikes chewed off in under 20 minutes which is mildly disappointing but he’s a true powerhouse & master destroyer of all chews so I’m not that bent out of shape about it. I do wish they were as large as they appear in the ad pics but isn’t that the game we all play ordering offline anymore? 🤷🏻‍♀️ • Pro Tip: smear this toy in peanut butter (xylitol free!), wet food mixed into a slurry with water or bone broth + kibble/treats, yogurt, or even pumpkin puree and freeze for a few hours & relax while watching all the organic engagement your dog gets out of this toy!

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Reviewed in the United States on June 3, 2026

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Amazon Customer

Los Angeles, US

★★★★★ 5

Great chew toy!!!

Size: 4 Inch (Pack of 2)

My dachshunds love all the bam bones!!!

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Reviewed in the United States on June 9, 2026

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Kaylon Jenkins

Charlottesville, US

★★★★★ 5

Great for frenchies

Size: 4 Inch (Pack of 2)

My pups love these and they look just like the photo when playing lol

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Reviewed in the United States on June 1, 2026

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Jess

Phoenix, US

★★★★★ 4

Pups like them

Size: 4 Inch (Pack of 2)

It took a little bit but once my dogs started chewing on them they seem to like them. They're holding up pretty well and not destroying them too quickly like they did some other chews.

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Reviewed in the United States on June 11, 2026

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adiva33

Belleville, US

★★★★★ 5

This chew will do

Size: 4 Inch (Pack of 1)

My Maltipoo loves this chew toy. It’s a good size for her biting and can carry it if needed.

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Reviewed in the United States on May 28, 2026