ACCURATE EXHAUST PRODUCTS MB2574 Body Lh Tailpipe Turndowns 2-1/4

( Brand: Accurate Exhaust Products ), ( Manufacturer Part Number: MB2574 )

Review ACCURATE EXHAUST PRODUCTS Mopar B body Lh 2-1/4 Inch Tailpipe Turndowns fits 1966-67

This **accurate exhaust system** is a meticulously crafted, high-performance replacement designed specifically for the **1966-1967 Mopar B-body vehicles**, including models like the **Duster, Valiant, and Barracuda**, featuring a **2-1/4" tailpipe turndown configuration**. Engineered to meet the exacting standards of original equipment manufacturers, this exhaust system ensures a seamless fit while delivering superior sound, efficiency, and durability. Constructed from **high-quality, heavy-gauge stainless steel**, it resists corrosion, rust, and heat degradation, guaranteeing long-term reliability even under demanding driving conditions. The **precision-welded joints and reinforced clamps** eliminate leaks, ensuring optimal exhaust flow and engine performance, while the **smooth, polished finish** enhances both aesthetics and functionality. The **turndown tailpipe design** not only improves exhaust note clarity but also helps direct exhaust gases efficiently, reducing backpressure and promoting better engine breathing. Whether installed for performance tuning, restoration authenticity, or simply to restore the classic growl of a Mopar V8 or inline-six, this exhaust system delivers a perfect balance of power, precision, and timeless appeal. Built to exceed factory specifications, it stands as a trusted upgrade for enthusiasts seeking both heritage accuracy and modern durability.

### Pros and Cons of Buying an Accurate Exhaust for a 1966-67 Mopar B-Body (LH 2-1/4 Tailpipe Turndowns)

---

#### **Pros**

1. **Improved Sound and Character**

An accurate exhaust system restores the factory sound of the engine, which is often a key selling point for classic car enthusiasts. The 1966-67 Mopar B-body (such as a Dodge Charger or Coronet) was known for its distinctive exhaust note, and a period-correct system enhances authenticity.

2. **Better Engine Breathing**

A properly fitted exhaust reduces backpressure, allowing the engine to breathe more efficiently. This can lead to improved throttle response, especially in a naturally aspirated 225 or 273 cubic inch small-block Mopar, which were common in these models.

3. **Preservation of Originality**

For collectors and show cars, maintaining originality is crucial. A factory-style exhaust ensures the vehicle remains true to its era, which can increase its value and appeal at car shows or for sale.

4. **Compatibility with Stock Components**

Since the exhaust is designed for the specific model year and engine configuration, it integrates seamlessly with stock headers, manifolds, and other factory parts. This reduces the risk of leaks or improper fitment issues.

5. **Aesthetic Appeal**

The visual appearance of a period-correct exhaust including the style of the tailpipes, mufflers, and mounting brackets contributes to the car s overall classic look. Many enthusiasts prioritize authenticity in both function and form.

6. **Simplified Maintenance**

A factory-style exhaust is easier to work on because mechanics and enthusiasts are familiar with its design. Replacing mufflers, repairing hangers, or addressing leaks is straightforward compared to aftermarket systems that may require custom modifications.

7. **Potential for Increased Resale Value**

If the car is kept in showroom condition with original or accurate aftermarket parts, its resale value may be higher among purists. Buyers who prioritize authenticity are willing to pay a premium for such details.

8. **Compatibility with Stock Emissions (If Applicable)**

While modern emissions regulations may not apply to these older cars, a factory-style exhaust ensures that any stock emissions components (if present) will function as intended without modifications.

---

#### **Cons**

1. **Limited Performance Gains**

Unlike high-flow aftermarket exhausts, an accurate system does not significantly improve horsepower or torque. It is primarily for sound, appearance, and authenticity rather than performance tuning.

2. **Potential for Noise Complaints**

The stock sound of a small-block Mopar can be loud, especially in urban areas where noise ordinances may apply. While the exhaust itself may not violate laws, the overall engine noise could still draw complaints from neighbors.

3. **Higher Cost Than Aftermarket Alternatives**

Accurate exhaust systems, especially those built to factory specifications with period-correct materials (e.g., early 1960s-style mufflers, hangers, and tailpipes), can be more expensive than generic aftermarket exhausts. Custom fabrication may also add to the cost.

4. **Limited Availability of Parts**

Finding a high-quality, accurate exhaust system for a 1966-67 B-body may require sourcing from specialty manufacturers or restoring original parts. This can be time-consuming and may involve waiting for custom orders.

5. **Potential for Rust and Wear**

Older exhaust systems, even if original, may suffer from rust or corrosion over time. A restored or new accurate exhaust avoids this issue but may still require periodic inspections to prevent leaks or failures.

6. **Compatibility with Modified Engines (If Applicable)**

If the engine has been modified (e.g., forced induction, large headers, or a different displacement), a stock-style exhaust may not be ideal. It could restrict flow or create a mismatch in performance, though this is less likely in a naturally aspirated setup.

7. **Installation Complexity**

While not overly difficult, installing an accurate exhaust especially one with period-correct hangers or tailpipe configurations may require careful alignment and securing. Improper installation can lead to rattles, leaks, or premature failure.

8. **Maintenance of Authenticity**

Keeping the exhaust (and the entire car) in original condition requires diligence. Modifications to other systems (e.g., headers, intake) could compromise the authenticity of the exhaust, making it less desirable to purists.

---

### **Conclusion**

Buying an accurate exhaust for a 1966-67 Mopar B-body is a worthwhile investment if your priorities are restoring the car s original character, improving its showroom appeal, and maintaining authenticity. The benefits in sound, fitment, and visual accuracy are significant for enthusiasts who value period-correct details. However, if performance gains or noise reduction are primary concerns, a more aggressive aftermarket exhaust might be preferable.

For most classic car owners, the trade-offs are minimal especially if the exhaust is part of a broader restoration or preservation effort. The cost and effort are justified by the enhanced authenticity and the satisfaction of driving a car that sounds and looks exactly as it did when new.

### **Recommendation**

If you are restoring or maintaining a 1966-67 Mopar B-body for show, sale, or personal enjoyment with an emphasis on authenticity, **purchase an accurate exhaust system**. Prioritize a reputable manufacturer that specializes in period-correct parts, such as those used in restorations or by companies like **Accurate Exhaust, Classic Muffler, or other Mopar specialty builders**.

- Correct tailpipe diameter (2-1/4" for these models).

- Factory-style mufflers (early 1960s design, often with a "throaty" tone).

- Proper hangers and mounting points to avoid rattles.

- Compatibility with stock headers and manifolds.

If budget is a concern, consider a **restored original exhaust** from a junkyard or salvage yard, though this may require cleaning and repainting. For new builds, a custom-fabricated accurate exhaust is the best choice for long-term reliability and authenticity.

Ultimately, the decision should align with your goals for the car. If you re building a show car or preserving a classic, the accurate exhaust is a small but meaningful detail that pays dividends in satisfaction and value.

Details:

Each tailpipe features factory correct bends.Note: Shipped double oversize. 1966-67 Mopar B-Body LH 2-1/4 Tailpipe W/ Turndowns: OEM solemnized tail pipes which are superior to the coated originals. Applications:1966-67 Mopar B-Body LH 2-1/4 with turndowns. Long lasting and effective against salt-road winters.

specifications carlockiio:

• for makes: Mopar
• for years: 1966-67
• brand: Accurate Exhaust Products
• mpn: Mb2574

shipping carlockiio:

• type: Calculated
• transit: 4-9 Days
• cost: $116.17
• service: UPS Ground, UPS 2nd Day Air
• class: Standard, Expedited
• carrier: UPS

payments carlockiio:

• credit card: Mastercard
• wallet: Paypal
• other

general carlockiio:

• condition: New
• Car Truck Parts Accessories > Exterior Parts Accessories > Exterior Locks Lock Hardware

offer carlockiio:

• started: April 4, 2026
• sold: 0
• options: Ship-to-home
• quantity: 1
• availability: In Stock

seller carlockiio:

• rating: 99.7%
• city: Huntington Beach, California
• # reviews: 53824

returns carlockiio:

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