What percentage of reviews are fake for this product?

28.00% of the analyzed reviews appear to be fake or inauthentic.

What is the authenticity grade for this product?

The product receives a grade of C based on review authenticity analysis.

How many reviews were analyzed?

15 reviews were analyzed for authenticity patterns.

What is the adjusted rating after removing fake reviews?

After removing suspicious reviews, the adjusted rating is 4.20 out of 5 stars.

How does this analysis help consumers?

This analysis helps consumers identify products with manipulated reviews, enabling more informed purchasing decisions based on genuine customer feedback.

Is this product priced fairly on Amazon?

Based on AI price analysis, this product is Unable to compare.

How is this product positioned in the market?

This product is positioned as a Mid-range option in its category.

VEVOR Car Sound Deadening Mat, 200 mil 25 sqft Butyl Sound Deadener, Noise Insulation and Vibration Dampening Material

Name: VEVOR Car Sound Deadening Mat, 200 mil 25 sqft Butyl Sound Deadener, Noise Insulation and Vibration Dampening Material
Brand: Amazon
SKU: B0CPY1XWXN
Availability: InStock
Rating: 4.2 (15 reviews)

ASIN: B0CPY1XWXN

Analysis Date: Nov 20, 2025

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Review Analysis Results

Authenticity Grade

28.00%

Fake Reviews

4.93

Original Rating

4.20

Adjusted Rating

Analysis Summary

The reviews show a mix of genuine and potentially inauthentic content. While most reviews contain specific usage details that suggest real experience (camper van builds, speaker boxes, coffee grinder modifications), there are concerning patterns. The product has an overwhelmingly positive rating distribution (14 of 15 reviews are 5-star, 1 is 4-star), which is statistically unusual. Several reviews are extremely brief and generic ('Great product at a great price', 'Très très bien'), lacking substantive details. One review appears to be a video description rather than a genuine review, and there's one duplicate review (R206PT6I0J7TBU appears twice with identical text). However, the majority of reviews contain specific installation details, product comparisons, and real-world applications that suggest legitimate user experiences.

Review Statistics

255

Total Reviews on Amazon

-0.73

Rating Difference

Price Analysis

VEVOR sound deadening mats represent good value in the mid-range segment with excellent user ratings. Monitor the price against the $80-$200 typical range for 25 sqft, and wait for seasonal promotions or coupon discounts. The 4.93/5 rating suggests strong customer satisfaction at whatever price point they're offering.

MSRP Assessment

Estimated MSRP: Unknown

Source: Unable to determine

Amazon Price: Unable to compare

Market Position

Positioning: Mid-range

Alternatives Range: $80-$200 for 25 sqft

Value: VEVOR offers solid performance at a competitive price point compared to premium brands like Dynamat or Kilmat.

Buying Tips

Best Time to Buy: Best deals often appear during major sales events like Prime Day, Black Friday, or spring automotive promotions.

Deal Indicators: Look for prices below $100 for 25 sqft, bundled offers with rollers/tools, or coupon discounts of 10-20%.

Watch For: Watch for unusually low prices that may indicate counterfeit products, thin material (less than 200 mil), or misleading coverage claims.

Price analysis generated by AI based on product category and market research. Actual prices may vary. Last analyzed: Dec 1, 2025

Understanding This Analysis

What does Grade C mean?

This product has moderate review authenticity concerns. A notable portion of reviews show suspicious patterns. Consider reading reviews carefully before purchasing.

Adjusted Rating Explained

The adjusted rating (4.20 stars) represents what we estimate this product's rating would be if fake reviews were removed. This product's adjusted rating is lower than Amazon's displayed rating (4.93 stars), suggesting positive fake reviews may be inflating the score.

How We Detect Fake Reviews

Our AI analyzes multiple factors: language patterns (generic vs. specific), reviewer behavior (history, timing), temporal anomalies (review clusters), verification status, sentiment authenticity, and statistical outliers. No single factor determines a review is fake - we look at the combination of signals.

Important Limitations

No automated system is perfect. Sophisticated fake reviews can evade detection, and some genuine reviews may be incorrectly flagged. Use this analysis as one data point in your purchasing decision, not the only factor. Reading actual review content yourself is always valuable.