AUDI 8E0807521H Line Rear Bumper Lower Valance Dual Exhaust

( Manufacturer Part Number: 8E0807521H ), ( Part Type: Line Bumper Exhaust ), ( Color: Blue ), ( Placement On Vehicle: Lower )

Review AUDI S line Rear Bumper Lower Valance Oem Dual Exhaust My fits A4 B7 2006–2008

The **Audi A4 B7 S-line (2006 2008) Lower Rear Bumper and Valance with Dual Exhaust Integration** is a precision-engineered aftermarket component designed to elevate the sporty aesthetic and functional performance of your Audi s rear end. Crafted from high-quality, durable materials, this bumper and valance assembly seamlessly blends form and function, offering a sleek, aggressive profile that accentuates the S-line s signature aggressive styling cues. The lower bumper features a robust, reinforced structure with integrated side skirts that enhance the vehicle s aerodynamic efficiency while providing additional protection against minor road debris and low-speed impacts. The valance panel, meanwhile, is meticulously contoured to match the factory design, ensuring a flawless fit with the Audi s body lines, whether your vehicle is equipped with a standard or optional rear spoiler.

One of the standout features of this bumper and valance set is its compatibility with dual exhaust systems, a hallmark of the S-line s performance-oriented identity. The integrated exhaust flares or exhaust tips (depending on the specific model variant) are designed to align perfectly with aftermarket exhaust headers or factory-installed dual exhausts, creating a cohesive and visually striking rear end. The exhaust components are typically constructed from polished stainless steel or high-grade black-powder-coated aluminum, offering both a premium finish and resistance to corrosion. For added customization, some versions include adjustable exhaust tips or integrated LED taillights, allowing owners to further personalize their Audi s rear appearance while maintaining compliance with local lighting regulations.

Underneath the surface, this bumper and valance assembly is engineered with practicality in mind. The lower bumper often includes reinforced rubber or polyurethane bumpers at critical impact zones, providing enhanced protection for the vehicle s bodywork during parking maneuvers or minor collisions. The valance itself may feature integrated air vents or cooling ducts, particularly if your Audi is equipped with a high-performance engine or aftermarket cooling solutions, ensuring optimal airflow to critical components like the brake calipers or exhaust manifolds. Additionally, the assembly is designed to accommodate a range of aftermarket modifications, such as LED fog lights, side steps, or even custom paint schemes, making it a versatile upgrade for both show and street applications.

For those seeking a balance between performance and aesthetics, this bumper and valance set is an ideal choice, as it not only enhances the Audi s aggressive stance but also supports its mechanical capabilities. Whether paired with a turbocharged 2.8L V6, a high-output 3.1L V6, or a tuned engine from the aftermarket, the reinforced structure and aerodynamic shaping contribute to improved downforce and stability at higher speeds. The attention to detail in the fitment ensures that there are no gaps or misalignments, maintaining the Audi s factory-level appearance while adding a touch of boldness that sets the S-line apart from standard B7 models. Overall, this component is a must-have for Audi enthusiasts looking to refine their vehicle s rear end with a blend of functionality, style, and performance.

### **Pros and Cons of Buying a 2006 2008 Audi A4 B7 S-Line (8E0807521H) with Lower Rear Bumper, Valance, and Dual Exhaust**

#### **Pros**

1. **Performance and Tuning Potential**

The S-Line trim of the B7 A4 (2006 2008) comes with a **2.8L V6 (230 245 hp)** or **3.2L V6 (250 265 hp, depending on market)**, which is more powerful than the base models. The dual exhaust system enhances exhaust note and flow, making it a good candidate for minor tuning (e.g., cold air intake, exhaust upgrades, or ECU remapping). The stock engine is reliable if maintained properly.

2. **Premium Interior and Brand Prestige**

Audi s B7 A4 S-Line features a **high-quality interior** with leather upholstery, wood/aluminum trim, and advanced features like **blind-spot monitoring (on later models), heated seats, and a premium sound system**. The brand carries prestige, which can make it easier to sell or trade in later.

3. **Reliability of the Platform**

The B7 A4 (especially the V6 models) is known for **durability** if serviced regularly. The **2.8L and 3.2L V6 engines** are robust, and with proper maintenance (oil changes, timing belt replacement, and cooling system checks), they can last **200,000 miles**. The **quattro AWD system** is also well-regarded for its reliability in all-weather conditions.

4. **Aftermarket Support**

The B7 A4 has a **strong aftermarket community**, with availability of **performance parts, suspension upgrades, and cosmetic enhancements**. The dual exhaust system you re looking at is a common upgrade, and there are aftermarket options for **stainless steel exhausts, cat-back systems, and mufflers** that improve both sound and performance.

5. **Resale Value (Compared to Base Models)**

While not as high as newer Audis, the **S-Line trim holds its value better than standard A4s** due to its premium features. If well-maintained, it can fetch a decent price in the used market, especially if it has a clean service history.

6. **Driving Dynamics**

The B7 A4 S-Line offers **sharp handling and a sporty ride**, thanks to its **stiffer suspension and optional sport packages**. The **quattro system** provides excellent traction in wet or snowy conditions, making it a practical luxury car.

7. **Aesthetic Appeal**

The **lower rear bumper and valance** you re considering are **cosmetic upgrades** that enhance the car s sporty stance. Many owners prefer this look, and it can be easily installed or swapped out if needed. The **dual exhaust** also contributes to a more aggressive appearance.

---

#### **Cons**

1. **Higher Maintenance Costs**

Audi parts and labor are **expensive** compared to mainstream brands. Routine maintenance (timing belt, water pump, spark plugs, etc.) can add up quickly. If you re not prepared for **$1,000 $2,000 per year in maintenance**, this may not be the best choice.

2. **Electrical and Software Issues**

The B7 A4 (especially later models) has **known electrical gremlins**, including **glitchy infotainment systems, sensor failures, and intermittent issues with power windows or locks**. Some owners report **check engine lights** due to minor sensor faults, which can be frustrating to diagnose.

3. **Fuel Economy Concerns**

The **V6 engines (especially the 3.2L) are thirsty**, averaging **18 22 MPG in the city and 25 28 MPG on the highway**. If fuel costs are a major concern, this may not be the most economical choice.

4. **Rust and Bodywork Issues**

The B7 A4 is **susceptible to rust**, particularly in the **wheel wells, rocker panels, and undercarriage**. A thorough inspection of the **lower rear bumper and valance area** is crucial rust can compromise structural integrity. If the car has been in a salted climate, check for **hidden corrosion**.

5. **Depreciation**

While the S-Line holds value better than base models, the **B7 A4 has already depreciated significantly**. If you plan to keep it long-term, the **resale value won t recover much**, and you ll be stuck with higher ownership costs.

6. **Potential Timing Belt and Water Pump Failures**

The **timing belt and water pump** on the 2.8L and 3.2L V6 engines **must be replaced every 60,000 100,000 miles** (depending on the engine variant). If this hasn t been done, **internal engine damage can occur**, leading to **expensive repairs ($1,500 $2,500)**.

7. **Limited Modern Safety Features**

Compared to newer Audis, the B7 lacks **modern safety tech** like **automatic emergency braking, lane-keeping assist, or advanced driver-assistance systems**. If safety is a priority, this may not be the best choice.

8. **Parts Availability and Scarcity**

While parts are still available, **some components (especially for older models) can be harder to find** than on newer cars. This can lead to **longer wait times for repairs** if you don t have a well-stocked mechanic.

9. **Potential Transmission Issues (If Automatic)**

The **01N automatic transmission** (used in some B7 A4s) has had **reputation issues** with **rough shifting and premature wear**. If the car has an automatic, check for **delayed engagement, slipping, or strange noises** during gear changes.

10. **Cosmetic Upgrades May Not Be Original**

The **lower rear bumper and valance** you re looking at could be **aftermarket or modified**, which may affect resale value. If they re **stock but worn**, replacing them is a good idea, but if they re **heavily modified**, it could deter buyers.

---

### **Conclusion**

- **Prioritize driving dynamics and performance** over fuel efficiency.

- **Are prepared for higher maintenance costs** and want a premium luxury car.

- **Plan to keep it for 5 10 years** with proper upkeep.

- **Enjoy tuning and modifying** the car (exhaust, suspension, etc.).

- **Don t mind some electrical quirks** in exchange for Audi s brand prestige.

- **Budget-conscious buyers** (high repair costs, poor fuel economy).

- **Those who want modern safety features** (no advanced driver aids).

- **People who dislike maintenance-heavy vehicles** (timing belt, water pump, electrical issues).

- **Buyers who want long-term resale value** (depreciation is already significant).

---

### **Recommendation**

You ve **verified the service history** (timing belt, water pump, major fluids).

The **car has no major rust** (especially in the bumper/valance area).

You re **prepared for potential electrical or transmission issues** (budget for diagnostics).

You **enjoy driving a sporty, premium Audi** and don t mind higher ownership costs.

You **plan to maintain it well** (regular oil changes, cooling system checks, etc.).

You **can t afford unexpected repairs** (budget at least **$1,500 $2,500/year** for maintenance).

You **need a fuel-efficient, low-maintenance car**.

The **exhaust, bumper, or valance are heavily modified** (may hurt resale).

You **don t have access to an Audi specialist** for repairs.

- **Get a pre-purchase inspection (PPI)** from an **Audi specialist** to check for **hidden issues** (rust, electrical problems, transmission health).

- **Verify the exhaust system is stock or properly installed** (aftermarket exhausts may void warranties if still under warranty).

- **Consider a warranty or extended service plan** if possible to offset repair costs.

- **Test drive thoroughly** listen for **exhaust leaks, unusual noises, or electrical gremlins**.

If all checks out, this **S-Line A4 can be a fantastic driving experience** just be prepared for the **higher cost of ownership**. If you re on a tighter budget, consider a **used BMW 330i or Mercedes C300** as alternatives with similar performance but sometimes better reliability.

Details:

Good, used condition. Please verify fitment by the part number provided. Scratches present. Ready for a fast shipping.

The shipping price is for 48 continuous states. Please examine all pictures carefully, especially close up. There is a picture with part number. No structural damage.

The item might have some light scratches or scuffs.

part #: 8e0807521h prices

• $85.00-$139.99

specifications vintagecarbumperus:

• for models: A4, B7
• for makes: Audi
• for years: 2006-2008
• mpn: 8e0807521h
• part type: Line Bumper Exhaust
• color: Blue
• placement on vehicle: Lower

seller vintagecarbumperus:

• rating: 99.8%
• # reviews: 1178
• city: Jacksonville, Florida

offer vintagecarbumperus:

• best offers: True
• started: May 21, 2026
• quantity: 1
• options: Ship-to-home
• availability: In Stock
• sold: 0

shipping vintagecarbumperus:

• cost: $30.00
• type: Fixed
• carrier: FedEx
• service: FedEx Ground Economy
• class: Economy
• transit: 5-11 Days

general vintagecarbumperus:

• condition: Used
• Exterior Parts Accessories > Bumpers Components > Bumper Inserts Covers

payments vintagecarbumperus:

• wallet: Paypal
• other
• credit card: Discover

returns vintagecarbumperus:

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

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