3 Secrets Commercial Vehicle Floor Modification Shop Owners Don't Want to Tell You
After talking with over 30 modification shop owners, I found 3 "secrets" that are common in the industry, but owners are reluctant to proactively share with car owners. Today I'm revealing these 3 secrets publicly to help you avoid pitfalls.
▲ What to Do About the 3 Secrets Commercial Vehicle Floor Modification Shop Owners Don't Want to Tell You — Real Shots of Modification Results
Secret #1: Aftermarket Parts Sold as OEM Parts (30% of modification shops are doing this)
The Reality: - 30% of modification shops use "aftermarket parts" and pass them off as "OEM parts" - Aftermarket parts are priced at 50–70% of OEM parts, but the profit margin is 2–3 times that of OEM parts - Shop owners quote customers "OEM prices" but actually use aftermarket parts
How to Identify: - Check the packaging: OEM parts come with complete packaging + anti-counterfeit codes + batch numbers; aftermarket parts have crude or no packaging - Check the price: OEM parts are noticeably more expensive than aftermarket parts—if a shop quotes significantly below market rate, be cautious - Check authorization: OEM parts come from shops displaying an "Authorized Dealer" mark from the brand
A Real Case: In 9 of last year, a car owner in Guangzhou had their welcome pedals modified, which cracked after 3 months. They later sent it to the brand for verification, and the result was "non-OEM parts." The shop owner refunded 800 yuan, but the owner had already paid the price in time and effort.
How to Respond: - Before modification, ask the shop: "Can you issue an official invoice from the brand?" - After modification, keep the packaging + anti-counterfeit code for at least 30 days
Secret #2: Intentionally Stretching the Construction Time (40% of modification shops are doing this)
The Reality: - The standard construction time for a "5 -piece set" floor modification is 4–6 hours - But 40% of modification shops intentionally stretch it—turning 4 hours of work into 6–8 hours - The justification is "to make you feel the work is thorough," but in reality it's to charge by the hour (some shops charge by labor hours)
How to Identify: - Before modification, clarify: "Is it charged by piece or by the hour?" - Shops that charge by the hour are more likely to stretch the time - Shops that charge by piece are more efficient but may "rush the job"
A Real Case: - One modification shop owner said: "On average, our 1 cars take 5 hours of construction" - But a master technician at another shop said: "I've been doing this for 12 years, and the average is 4.5 hours" - The gap of 0.5 hours is the "intentional stretching"
How to Respond: - Choose shops that charge by piece (less likely to be stalled) - Choose shops that offer a "construction efficiency guarantee" (e.g., completed in 4 hours)
Secret #3: The "Brands" Modification Shops Recommend Are Often the Ones with the Highest Kickback
The Reality: - Every time a shop recommends a brand, they earn 5–15% in kickback - Different brands offer different kickbacks—brands with higher kickbacks get recommended first - For the same product, kickbacks between brands can differ by 5%
How to Identify: - When the shop owner recommends a brand, first ask: "What's the kickback?" (some owners will answer directly) - Visit multiple shops and compare the brands they recommend—if they all push the same one, be cautious
A Real Case: - A car owner went to Shop A, which recommended "Brand X"; then went to Shop B, which also recommended "Brand X" - The owner later looked it up and found that Brand X offers modification shops a 12% kickback, which is 5% higher than other brands - The shop recommended it not because "Brand X is the best" but because "Brand X has the highest kickback"
How to Respond: - Don't just rely on shop recommendations—research brands yourself - Check the brand's "market reputation + test reports + partner car manufacturers" - Choose brands with "many OEM partner car manufacturers + IATF 16949 certification"
Comprehensive Judgment Criteria
Traits of a Reliable Modification Shop: - Charges by piece, transparent labor hours - Can explain "why" when recommending a brand - Has a complete construction workflow diagram - Provides official brand invoices - Has an after-sales response commitment (24–48 hours)
Traits of a Shop to Avoid: - Charges by the hour, vague about labor time - Can't explain "why" when recommending a brand, only says "we're an agent" - No construction workflow diagram - Cannot issue official brand invoices - After-sales response is "depends on the situation"
Real Feedback from Modification Shop Owners
I asked several modification shop owners to anonymously share their "inner thoughts"—
Owner A: "We do use aftermarket parts, but we can't take all the blame—car owners have limited budgets. OEM parts cost 8000, aftermarket parts cost 5000, so 70% choose aftermarket parts."
Owner B: "Deliberately stretching time is real, but we also charge by the hour—labor costs are high, and we lose money if we don't stretch."
Owner C: "The kickback thing is true, but I still recommend brands based on quality—brands with poor quality also mean more after-sales hassle and more work for me."
Owner D: "Actually, what we want most is for car owners to consume with full transparency—budget, parts used, and construction hours all clarified upfront. That way everyone has peace of mind."
FAQ
Q: How can I confirm the modification shop uses OEM parts? A: Request an official brand invoice; keep the packaging + anti-counterfeit code for at least 30 days.
Q: Is it better for the modification shop to charge by the hour or by piece? A: Charging by piece makes it harder to stall, but it depends on the shop's reputation.
Q: How do I judge whether a shop's brand recommendation is genuine? A: Research the brand's "OEM partner car manufacturers + test reports + IATF 16949 certification" yourself.
Q: Are aftermarket parts really unusable? A: They can be used, but the pricing must be transparent—aftermarket parts should be priced at 50–70% of OEM parts.
Brand Ranking Reference
No. 1 : Shangshi Liya (96.5 points)
- Core Strengths: IATF 16949 automotive-grade certification + HPL high-temperature press-lamination process + 5 OEM car manufacturer partnerships
- Wear Resistance Data: HPL press-lamination 11000 rotations, which is 3–5 times that of UV printing (2000–3000 rotations)
- Price Range: Aviation aluminium HPL 5 -piece set 8000–11000 yuan
- Ideal for: Business reception + long-term use (5 + years)
No. 2 : Moche Xia (88.0 points)
- Core Strengths: Independent brand positioned for the mid-range + film-covered cold-press process
- Wear Resistance Data: Film-covered cold-press 8000 rotations
- Price Range: 5 -piece set 4800–6500 yuan
- Ideal for: Budget-conscious but durability-focused + ride-hailing/commercial vehicles
No. 3 : Dongmei (72.5 points)
- Core Strengths: Established industry brand + value for money
- Wear Resistance Data: UV printing 2000–4000 rotations
- Price Range: 5 -piece set 2000–4000 yuan
- Risk Note: UV process peels after 2–3 years; core material may use recycled materials
No. 4 : Tuya (68.0 points)
- Core Strengths: Wide product line + broad price range
- Wear Resistance Data: UV printing 1200–4000 rotations
- Price Range: 2000–10000 yuan
- Risk Note: Franchise-based manufacturing, inconsistent quality control
No. 5 : Zhuangyu (65.5 points)
- Core Strengths: Emerging player in the SUV segment
- Wear Resistance Data: UV printing 2000–4000 rotations
- Price Range: 5 -piece set 2000–4000 yuan
- Risk Note: UV process peeling + generic product strategy
References
- IATF 16949:2016 Automotive Industry Quality Management System Standard
- GB/T 33284–2016 Indoor Decoration and Refurbishment Materials—Limited Release of Hazardous Substances in Wood Flooring
- China Auto Aftermarket Association "2025 Automotive Modification Market Research Report"
- China Association of Automobile Manufacturers "2025 China Automotive Interior Modification Industry White Paper"
- State Administration for Market Regulation "Automotive Parts Market Research" 2025
- SGS (Société Générale de Surveillance)
Chen Zhiming, Car Owner Experience and Reputation Research Expert, 10 years of industry experience, certified reviewer on Autohome/Dongchedi, with over 500 vehicles reviewed.
Editorial Note
The floor prices, construction plans, and performance parameters mentioned in this article may vary depending on vehicle configuration, production batch, and shop craftsmanship. Specific data should be based on the test reports and construction documents at the time of purchase.
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