Wavetrac Differential Audi 80/90/UrS4 QUATTRO REAR

Wavetrac Differential Audi 80/90/UrS4 QUATTRO REAR

Marsoni

M251S

$757.75

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

Wavetrac Differential Audi 80/90/UrS4 QUATTRO REARWavetrac diffs are state of the art helical gear differentials designed, developed, and manufactured in the USA by Autotech Driveline. The Wavetrac Differential is the only torque biasing differential on the market with patented technology that mitigates wheelspin when an unloaded wheel condition arises. During zero axle load conditions, the Wavetrac cam device acts to create internal load, maintaining drive on the gripping wheel instead of acting

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I am using this with Nano-Hydroxyapatite toothpaste and so far my teeth feel really smooth. It says it helps rebuild the mineralization on your teeth and that is why they feel this way. I'm all for that! I ordered the mint flavor and while the taste is good, it does burn. It does have a lot of oils that could cause this. I'm finding the more I use it, it is burning less. I also find if I hold it in my mouth first without swishing right away, that seems to help. If it is helping my teeth and gums, then I can work through a little discomfort. I personally think its a good product backed by science.

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Reviewed in the United States on April 20, 2026

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B. Layton

Pawtucket, US

★★★★★ 5

Great mouthwash!

Flavor Name: Coconut Mint, Size: 8 Ounce

I am very big into natural products and ingredients. This is great mouthwash that helps sensitive teeth and keeping them clean. My son uses with braces and it helps a lot since flossing is difficult.

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Reviewed in the United States on June 1, 2026

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Amazon Customer

Charlottesville, US

★★★★★ 4

Good flavor, acceptable results.

Flavor Name: Spearmint, Size: 1.31 Ounce

These work pretty good but don't last as long as I'd hoped for. Still a good buy though, much better than the store bought mouthwashes.

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Reviewed in the United States on March 15, 2026

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