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  3. BMW 3989797

BMW 3989797 Right Rocker Panel Skirt X4M 1615

fits model: F98, X7. make: Bmw. year: 2020.

3989797 Bmw 2020 X4m F98 Right Rocker Panel Side Skirt #1615 X7

( Manufacturer Part Number: 3989797 ), ( Part Type: Panel Skirt ), ( Oe/oem Part Number: 1615 ), ( Country Of Origin: Germany )

Review BMW X4m Right Rocker Panel Side Skirt #1615 fits F98 X7 2020

The **BMW 3989797 2020 X4 M F98 Right Rocker Panel Skirt (Part Number 1615 X7)** is a precision-engineered aftermarket accessory designed to enhance both the aesthetic appeal and aerodynamic efficiency of the iconic BMW X4 M (F98) generation. Crafted from high-quality, durable materials, this right-side rocker panel skirt seamlessly integrates with the vehicle s aggressive, performance-oriented stance, offering a sleek, low-profile look that accentuates the car s muscular contours. The skirt is meticulously contoured to match the contours of the X4 M s lower body, ensuring a flush fit that eliminates unsightly gaps while maintaining the vehicle s ground clearance. Engineered with aerodynamic principles in mind, this component helps reduce drag and improve downforce, contributing to a more stable and responsive driving experience, particularly at higher speeds. The material used is resistant to UV degradation, oxidation, and environmental wear, ensuring long-lasting performance and a polished appearance even under prolonged exposure to the elements. Whether installed for its functional benefits or purely for its striking visual impact, this rocker panel skirt is a standout addition for enthusiasts seeking to refine the X4 M s already commanding presence on the road or track. Its compatibility with the 2020 model year ensures a perfect fit, allowing for a straightforward installation process that preserves the integrity of the original chassis and suspension components.

### **Pros and Cons of Buying a 2020 BMW X4 M (F98) with Right Rocker Panel Skirt (Part Number: 1615 X7)**

#### **Pros**

1. **Enhanced Aesthetics** The right rocker panel skirt (part number 1615 X7) improves the car s aggressive, sporty appearance, aligning it with the M Performance branding. This modification is visually striking and helps distinguish the vehicle from standard X4 models.

2. **Potential Value Retention** Since the X4 M is a high-demand model, aftermarket modifications like skirts can enhance its appeal to collectors or enthusiasts, potentially preserving or even increasing resale value over time.

3. **Improved Downforce (Minor)** While the impact on aerodynamics is subtle, the skirt can slightly increase downforce at high speeds, which may contribute to better stability in aggressive driving scenarios.

4. **Customization Flexibility** BMW offers various skirt options (e.g., carbon fiber, painted, or matte finishes), allowing buyers to match the style to their preferences or the rest of their vehicle s appearance.

5. **Factory-Approved Fitment** The part is officially designed for the F98 X4 M, ensuring a proper fit without the need for extensive modifications or adjustments.

6. **Durability** BMW skirts are typically made from high-quality materials (e.g., reinforced plastic or composite) that are resistant to wear and environmental damage, provided they are installed correctly.

7. **Resale Appeal** For buyers who prioritize aesthetics and performance, a skirted X4 M may attract a niche market of enthusiasts willing to pay a premium for a fully customized M model.

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#### **Cons**

1. **Cost** The right rocker panel skirt is not a cheap addition. Depending on whether it s purchased directly from BMW or an authorized dealer, the price can range from **$1,500 to $3,000 **, depending on material and installation fees. This is a significant investment for a purely cosmetic upgrade.

2. **Minimal Performance Benefit** The aerodynamic gains from the skirt are negligible at everyday driving speeds. The real performance benefits of an M model come from its engine, suspension, and transmission not the skirt. This makes the purchase more of a styling choice than a functional one.

3. **Maintenance Considerations** Skirts can accumulate dirt, mud, and debris, requiring occasional cleaning. If not maintained, they may look dull or damaged over time, negating their visual appeal.

4. **Potential for Damage** The skirt is exposed to road debris, rocks, and minor impacts, which could lead to cracks or misalignment. Unlike standard panels, it may not be covered under BMW s standard warranty.

5. **Installation Complexity** While the part is designed for the F98, professional installation is recommended to ensure proper sealing and alignment. DIY installation risks misfits or improper gaps, which could affect both aesthetics and aerodynamics.

6. **Resale Impact (Mixed)** While some buyers may appreciate the skirt, others might see it as unnecessary, potentially reducing resale value for those who prioritize a more stock appearance. This depends heavily on the buyer s preferences.

7. **Weight Addition** Skirts add slight weight to the vehicle, which could have a minor (but negligible) impact on acceleration and fuel efficiency. However, the difference is so small that it s unlikely to be noticeable in daily driving.

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### **Conclusion**

The right rocker panel skirt for a 2020 BMW X4 M (F98) is a **cosmetic upgrade with minimal functional benefits**. It enhances the car s aggressive look, which is a major selling point for M Performance enthusiasts, and may slightly improve aerodynamics at high speeds. However, the cost is high relative to the practical advantages, and maintenance could become an added hassle.

If you **prioritize aesthetics, brand consistency, and are willing to invest in a visually striking M model**, the skirt is a worthwhile addition. However, if you **value performance over appearance or are budget-conscious**, the money could be better spent on other modifications (e.g., suspension upgrades, exhaust systems, or interior enhancements) that offer more tangible benefits.

### **Recommendation**

- **Buy the skirt if:**

- You are a BMW M Performance enthusiast who values the aggressive, track-inspired look.

- You plan to keep the car long-term and want to maximize its appeal to fellow enthusiasts.

- You are willing to pay for professional installation and maintenance to preserve its appearance.

- **Skip the skirt if:**

- You prefer a more subtle or stock appearance.

- You want to allocate your budget toward performance upgrades with measurable benefits.

- You are concerned about the potential for damage or maintenance hassles.

Ultimately, the decision depends on whether you see the skirt as a **necessary aesthetic enhancement** or an **optional luxury**. For most buyers, it s a **high-end cosmetic choice** rather than a performance necessity.

Details:

Car had 28,996 Miles on it. For Sale is a Right Rocker Panel Side Skirt from 2020 BMW F98 X4M drive, Item in Used Shape. Comes complete as shown.

part #: 3989797 prices

  • $149.99-$269.99

specifications cartrimmouldings:

  • for models: F98, X7
  • for makes: Bmw
  • for years: 2020
  • mpn: 3989797
  • part type: Panel Skirt
  • oe/oem part number: 1615
  • country of origin: Germany

payments cartrimmouldings:

  • other
  • wallet: Paypal
  • credit card: Diners-club

offer cartrimmouldings:

  • started: May 28, 2026
  • sold: 0
  • options: Ship-to-home
  • quantity: 1
  • availability: In Stock

general cartrimmouldings:

  • condition: Used
  • Car Truck Parts Accessories > Exterior Parts Accessories > Body Moldings Trims

returns cartrimmouldings:

  • time: 30 Days
  • paid by: Buyer
  • policy: Returns Accepted

shipping cartrimmouldings:

  • cost: $79.95
  • class: Standard
  • type: Fixed
  • carrier: FedEx
  • transit: 2-6 Days
  • service: FedEx Ground / FedEx Home Delivery

seller cartrimmouldings:

  • # reviews: 73543
  • city: Phoenix, Arizona
  • rating: 99.2%
for models: f98, x7, for makes: bmw, for years: 2020, part type: panel skirt, oe/oem part number: 1615, country of origin: germany,
category: auto parts > car truck parts accessories > exterior parts accessories > body moldings trims, sku: 15779971298263892,
Bmw 3989797 Is Similar To:
cartrimmouldings logo
5 offers $149.99–$269.99 USD
  • Used. Offer #1 priced at $149.99 + $79.95 shipping estimate = $229.94* total. For Sale is a Right Rocker Panel Side Skirt from a 2020 BMW F98 X4M xDrive.+$79.95 shipping
  • Used. Offer #2 priced at $269.99 + $49.95 shipping estimate = $319.94* total. For Sale is a Right Front Passenger Door Panel from a 2020 BMW F98 X4M xDrive.+$49.95 shipping
  • Used. Offer #3 priced at $239.99 + $49.95 shipping estimate = $289.94* total. For Sale is a Left Rear Driver Door Panel from a 2020 BMW F98 X4M xDrive.+$49.95 shipping
  • Used. Offer #4 priced at $269.99 + $49.95 shipping estimate = $319.94* total. For Sale is a Left Front Driver Door Panel from a 2020 BMW F98 X4M xDrive.+$49.95 shipping
  • Used. Offer #5 priced at $239.99 + $49.95 shipping estimate = $289.94* total. For Sale is a Right Rear Passenger Door Panel from a 2020 BMW F98 X4M xDrive.+$49.95 shipping

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