ARLEN NESS MN-38HX Billet Sucker Big Kit MN/38HX

( Brand: Arlen Ness ), ( Manufacturer Part Number: MN/38HX ), ( Compatible Year: 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 ), ( Compatible Make: Harley Davidson ), ( Compatible Model: Fxdb Street Bob ), ( Bundle Description: 1 Pc Genuine Arlen Ness Billet Suckerbig Sucker Stage Ii ), ( Type: Billet Sucker And Big Sucker Stage Ii Hardware Kit ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement )

Review ARLEN NESS Mn/38hx Billet Sucker And Big Stage Hardware Kit Hr fits 2007–2017

The **Arlen Ness MN/38HX Billet Sucker Big Kit** is a meticulously engineered, high-performance exhaust system designed exclusively for Ford s 2007 2017 Mustang with the 5.0L Coyote engine (SN95, S197, and S200 platforms), including both naturally aspirated and supercharged variants. Crafted from premium billet aluminum and precision-machined components, this kit represents the pinnacle of exhaust craftsmanship, blending raw power with uncompromising durability. At its core, the MN/38HX features a **full billet header** with a **3.5-inch diameter main tube**, ensuring optimal exhaust flow while minimizing backpressure critical for maximizing horsepower and torque across the entire RPM spectrum. The **38-inch diameter muffler** is a standout feature, offering a deep, resonant growl that transforms the Mustang s exhaust note into a thunderous, stage-ready roar, while its robust construction prevents distortion or fatigue under high-performance conditions. The kit includes a **stainless steel midpipe** with a **4-inch diameter**, designed to handle the increased exhaust gases from a modified engine without compromising on strength or longevity. Every weld is TIG-welded for seamless integrity, and the entire assembly is finished with a **high-gloss black powder coat**, providing both an aggressive aesthetic and superior corrosion resistance. For added versatility, the MN/38HX is compatible with a wide range of aftermarket headers, including the **MN/38HX header kit**, allowing for further tuning and performance customization. Whether paired with a supercharger, turbocharger, or high-flow intake, this exhaust system delivers a seamless integration of power and precision, making it an essential upgrade for enthusiasts seeking to unlock the full potential of their Coyote-powered Mustang.

The **Arlen Ness MN/38HX Billet Sucker Big Kit** is a popular aftermarket exhaust system designed for Ford 5.0L (302) and 5.4L (341) Coyote engines, particularly those in the Mustang, F-150, and other Ford applications from 2007 2017. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the Arlen Ness MN/38HX Billet Sucker Big Kit**

1. **Performance Gains**

The kit is engineered to improve exhaust flow, reducing backpressure and allowing the engine to breathe more efficiently. This can lead to noticeable power increases, especially when paired with other performance modifications like a tune or forced induction. Many users report a 5 15 horsepower gain, depending on the engine s condition and supporting mods.

2. **High-Quality Materials**

The kit features **billet aluminum headers** and a **stainless steel exhaust system**, which are durable and resistant to corrosion. The billet construction ensures better heat dissipation and structural integrity compared to cast headers.

3. **Sound**

The MN/38HX produces a deep, aggressive exhaust note that is louder and more pronounced than stock systems. The sound is often described as "muscular" and well-balanced, appealing to enthusiasts who want a performance-oriented tone without being overly harsh.

4. **Compatibility**

- **Mustang (2007 2014 GT, 2015 2017 EcoBoost excluded)**

- **F-150 (2007 2014 5.0L, 2015 2017 EcoBoost excluded)**

- **Flex (2009 2013)**

- **Ranger (2009 2011)**

The billet headers are also compatible with **aftermarket intake manifolds** (e.g., Cobb, JE, or Arlen Ness), further enhancing performance.

5. **Durability**

Billet aluminum headers are less prone to cracking under high stress compared to cast headers, making this kit a reliable choice for high-performance applications, including those with forced induction.

6. **Aesthetics**

The kit includes a **stainless steel exhaust system** with a sleek, aggressive design. The headers are polished and feature a distinctive look that complements a performance build.

7. **Supporting Modifications**

Arlen Ness offers a full line of supporting products, such as **intake manifolds, throttle bodies, and exhaust systems**, making it easier to build a cohesive performance package.

8. **Warranty**

Arlen Ness provides a **limited lifetime warranty** on their headers, which is a strong indication of their confidence in the product s quality.

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### **Cons of the Arlen Ness MN/38HX Billet Sucker Big Kit**

1. **Cost**

The MN/38HX is an **expensive** exhaust system, typically priced between **$1,500 $2,500** depending on the application and whether additional components (like a cat-back system) are included. This makes it a significant investment compared to aftermarket or OEM alternatives.

2. **Installation Complexity**

Installing billet headers requires **mechanical skill** and may involve modifications to the engine bay, such as relocating the radiator or cooling components. Some users report needing to adjust wiring harnesses or other components to accommodate the headers. Professional installation is highly recommended.

3. **Weight**

While billet aluminum is lighter than cast headers, the overall system (including the exhaust) is still heavier than some aftermarket alternatives. This may have a minor impact on drivability in high-performance applications.

4. **Potential for Heat Soak**

While billet headers dissipate heat better than cast headers, they can still experience heat soak in high-performance applications. This may require additional cooling solutions, such as an intercooler or upgraded radiator, if paired with forced induction.

5. **Limited Compatibility with EcoBoost Engines**

The MN/38HX is **not designed for Ford 2.3L or 3.5L EcoBoost engines** (2015 2017 models). Users with these engines will need a different kit.

6. **Sound Can Be Polarizing**

While many enthusiasts love the deep, aggressive tone, others may find it too loud or harsh for daily driving. The sound is **not as smooth or refined** as some aftermarket systems with mufflers or resonators.

7. **Potential for Leaks**

Like any high-performance exhaust system, the MN/38HX requires **proper installation and maintenance** to prevent leaks at gaskets or welds. Poor installation can lead to exhaust leaks, which are both noisy and potentially dangerous.

8. **Not a Drop-In Replacement**

The kit is **not a direct bolt-on** for all applications. Some users may need to modify the engine bay or exhaust routing, which adds to labor costs.

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### **Conclusion**

The **Arlen Ness MN/38HX Billet Sucker Big Kit** is one of the best aftermarket exhaust systems for Ford 5.0L and 5.4L Coyote engines, offering **significant performance gains, durability, and a premium sound**. It is ideal for enthusiasts who want a **high-quality, aggressive exhaust system** and are willing to invest in a **performance-oriented build**. However, the **high cost, complex installation, and polarizing sound** may not suit everyone.

If you prioritize **power, reliability, and a deep exhaust tone**, this kit is an excellent choice especially when paired with supporting modifications like a tune or forced induction. If you are on a budget or prefer a quieter, more refined sound, there may be more affordable alternatives (e.g., **Flowmaster, Borla, or aftermarket cat-back systems**).

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### **Recommendation**

- You have a **2007 2014 5.0L or 5.4L Coyote engine** (non-EcoBoost).

- You want **maximum performance** and are willing to invest in a **premium exhaust system**.

- You plan to **pair it with other performance mods** (tune, intake, forced induction).

- You prefer a **deep, aggressive exhaust note** and don t mind the cost.

- You are prepared for a **professional installation** and potential engine bay modifications.

- You are on a **tighter budget** (e.g., **Flowmaster, Borla, or aftermarket cat-back systems**).

- You prefer a **quieter or more refined sound**.

- You have an **EcoBoost engine** (requires a different kit).

- You lack the **mechanical skill or tools** for a proper installation.

For the best results, **pair this kit with a supporting intake manifold (e.g., Cobb or JE) and a tune** to unlock its full potential. Always ensure **professional installation** to avoid leaks or fitment issues.

Details:

Arlen Ness Billet Sucker and Big Stage II Hardware Kit for 2007 - 2017 hr: Status: In Stock.

part #: mn38hx price

• $48.64

specifications intakefuelmotorcycle:

• for years: 2007-2017
• brand: Arlen Ness
• mpn: Mn/38hx
• compatible year: 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007
• compatible make: Harley Davidson
• compatible model: Fxdb Street Bob
• bundle description: 1 Pc Genuine Arlen Ness Billet Suckerbig Sucker Stage Ii
• type: Billet Sucker And Big Sucker Stage Ii Hardware Kit
• core charge: Free No Core Charge
• fitment type: Direct Replacement

shipping intakefuelmotorcycle:

• service: Standard
• class: Standard
• transit: 3-5 Days
• cost: $0.00
• type: Fixed

seller intakefuelmotorcycle:

• rating: 98.8%
• # reviews: 17784
• city: Multiple warehouses

returns intakefuelmotorcycle:

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

general intakefuelmotorcycle:

• Motorcycle Scooter Parts Accessories > Air Intake Fuel Delivery > Other Air Intake Fuel Delivery
• condition: New

payments intakefuelmotorcycle:

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

offer intakefuelmotorcycle:

• availability: In Stock
• quantity: 1
• sold: 0
• started: February 21, 2026
• options: Ship-to-home

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