FLOWMASTER 151807 Natural Steel Tailpipe Performan Kit 15807 65-73 Mustang/cougar

( Brand: Flowmaster ), ( Manufacturer Part Number: 151807 ), ( Manufacturer Warranty: Lifetime ), ( Finish: Aluminized )

Review FLOWMASTER Kit Natural Steel 65-73 Mustang/cougar Tailpipe Performan fits MUSTANG COUGAR

The **Flowmaster 151807 15807 Kit in Natural Steel (65-73 Mustang/Cougar Tailpipe Performance)** is a meticulously engineered exhaust system designed to elevate the performance, aesthetics, and overall driving experience of your classic Ford Mustang or Cougar from the 1965 to 1973 model years. Crafted from high-quality **natural steel**, this kit delivers a perfect blend of durability, precision, and timeless appeal, ensuring it stands as both a functional upgrade and a stylish statement piece. The **15807 tailpipe assembly** features a **dual-outlet configuration**, a hallmark of Flowmaster s signature design, which not only enhances exhaust flow but also contributes to a deeper, more engaging exhaust note that resonates with the spirit of muscle car driving. Engineered to fit seamlessly under the hood and beneath the vehicle, this kit includes **precision-machined components**, including a **stainless steel muffler and exhaust pipes**, that are built to withstand the rigors of high-performance driving while maintaining a sleek, factory-inspired look. The **65-73 Mustang/Cougar-specific design** ensures a perfect fit, eliminating the need for modifications, and the **natural steel finish** provides a classic, understated aesthetic that complements the vehicle s heritage without overpowering its original charm. Whether you re cruising down the highway, hitting the drag strip, or simply enjoying the raw power of your Mustang, this Flowmaster kit enhances throttle response, exhaust efficiency, and overall engine performance, all while delivering the unmistakable growl that only a properly tuned exhaust system can provide. Built to last, this kit is a testament to Flowmaster s legacy of craftsmanship, offering both performance enthusiasts and purists a way to preserve the soul of their classic Ford while pushing it to new heights.

### **Pros and Cons of the Flowmaster 151807/15807 Natural Steel 65-73 Mustang/Cougar Tailpipe Kit**

1. **High-Quality Construction** Flowmaster is a well-respected brand known for durable, precision-engineered exhaust components. The natural steel finish is robust and resistant to corrosion, making it suitable for daily driving and performance applications.

2. **Sound Characteristics** The kit produces a deep, aggressive exhaust note that enhances the classic Mustang/Cougar growl, particularly when paired with a performance engine or exhaust system. The tone is more pronounced than stock, adding to the car s presence.

3. **Compatibility** Specifically designed for the 65-73 Mustang (including the Cougar) with the 289/302 engines, ensuring a proper fit without modifications. The kit includes all necessary hardware, including clamps, gaskets, and mounting brackets.

4. **Performance Benefits** While not a high-flow exhaust, it improves exhaust flow slightly compared to stock, which can contribute to better engine scavenging, especially in naturally aspirated applications. This may lead to marginal power gains in some cases.

5. **Aesthetic Appeal** The natural steel finish has a vintage look that complements the classic Mustang/Cougar body style. It s a subtle upgrade that enhances the car s appearance without being overly flashy.

6. **Ease of Installation** Designed for relative simplicity, though some basic mechanical skills are helpful. The kit includes detailed instructions, and many enthusiasts report being able to install it in a few hours with standard tools.

7. **Durability** Natural steel is less prone to warping or cracking than some aftermarket materials, making it a reliable choice for long-term use.

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1. **Sound Level** While the exhaust note is desirable for some, it can be quite loud, especially in stock or mildly modified engines. If you prefer a quieter exhaust, this kit may not be ideal. Some owners report it being noticeably louder than stock, which could draw unwanted attention in residential areas.

2. **Limited Flow Improvements** Unlike high-performance exhausts (e.g., Borla, MagnaFlow), this kit does not significantly increase exhaust flow. If your goal is power gains, you may need additional modifications (e.g., headers, cat-back exhaust) for noticeable results.

3. **Weight** Natural steel is heavier than stainless steel or aluminum, which could slightly impact acceleration, though the difference is minimal in most cases.

4. **Potential for Rust** While natural steel is more durable than mild steel, it is not entirely rust-proof. In harsh climates or if not properly maintained (e.g., lack of waxing or undercoating), rust can develop over time, particularly in areas exposed to road salt or moisture.

5. **Cost** Compared to basic aftermarket exhausts, this is a mid-range to premium-priced kit. For enthusiasts on a tight budget, there may be cheaper alternatives (though often with lower quality).

6. **Installation Challenges** While designed for ease, some users may encounter difficulties if they lack experience with exhaust work. Proper alignment and sealing are critical to avoid leaks, which can be frustrating if not done correctly.

7. **Limited Customization** Unlike modular exhaust systems, this is a pre-fabricated kit with fixed components. If you later want to upgrade (e.g., add a muffler or change the piping), you may need to replace the entire kit.

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The Flowmaster 151807/15807 natural steel tailpipe kit is an excellent choice for Mustang/Cougar owners who prioritize a classic, aggressive exhaust tone and a durable, well-built component. It strikes a balance between performance, sound, and aesthetics, making it suitable for both street-driven cars and those used for light track or cruising. However, it is not ideal for those seeking significant power gains or a quieter exhaust. The kit s strengths lie in its reliability, sound quality, and compatibility, while its limitations include its weight, sound level, and lack of extreme flow improvements.

- You own a 65-73 Mustang or Cougar and want a high-quality, vintage-inspired exhaust upgrade.

- You enjoy a deep, growling exhaust note and don t mind it being louder than stock.

- You value durability and are willing to invest in a premium product.

- You plan to keep the car in good condition for daily driving or light performance use.

- You need a quieter exhaust or live in an area with strict noise ordinances.

- Your primary goal is maximum power output (consider a cat-back exhaust or headers instead).

- You re on a tight budget and can find equally durable (or better) alternatives at a lower cost.

- You re uncomfortable with basic exhaust installation or lack the necessary tools.

For most classic Mustang/Cougar enthusiasts who appreciate both performance and style, this kit is a solid recommendation. Pair it with a well-maintained engine and suspension for the best results.

Details:

Item Brand: Flowmaster. This part is compatible with 12 vehicle Exhaust tailpipe, 2.5 in Diameter, Steel, Aluminized, Fits Ford Mustang, Mercury Cougar 1965-73, Pair. Item MPN: 151807.

part #: 151807 prices

• $120.99-$273.42

specifications emissyste:

• for models: Mustang, Cougar
• brand: Flowmaster
• mpn: 151807
• manufacturer warranty: Lifetime
• finish: Aluminized

payments emissyste:

• other
• wallet: Apple-pay
• credit card: Discover

offer emissyste:

• options: Ship-to-home
• quantity: 1
• sold: 0
• availability: In Stock
• started: March 18, 2026

seller emissyste:

• # reviews: 329805
• city: Cass City, Michigan
• rating: 99.8%

general emissyste:

• condition: New
• Car Truck Parts Accessories > Exhaust Emission Systems > Other Exhaust Emission Parts

returns emissyste:

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

shipping emissyste:

• carrier: FedEx
• cost: $0.00
• transit: 2-6 Days
• class: Economy
• type: Fixed
• service: Economy, FedEx Ground Economy

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