HARLEY-DAVIDSON 80258-99 Slash Muffler Baffles Slip On

( Brand: Harley-davidson ), ( Manufacturer Part Number: 80258-99 ), ( Type: Muffler )

Review HARLEY DAVIDSON Slash Cut Slip On Mufflers No Baffles fits DYNA SCREAMIN EAGLE

The **Harley-Davidson 80258-99 Dyna Screamin Eagle Slash Slip Mufflers and Baffles** are a meticulously engineered set of exhaust components designed exclusively for the **2019 2023 Harley-Davidson Dyna STX, STI, and STF models**, delivering an unmistakable blend of raw power, aggressive styling, and uncompromising performance. Crafted from high-grade **304 stainless steel**, these slip-on mufflers and baffles are built to withstand the relentless demands of high-performance riding while maintaining a sleek, factory-inspired aesthetic. The **Screamin Eagle Slash** design features a bold, angular cutaway pattern that not only enhances the Dyna s already commanding presence but also optimizes exhaust flow for a deeper, more resonant growl that turns heads on every run. The **slip-on installation** ensures a seamless fit without the need for welding, making this an accessible yet high-impact upgrade for riders seeking a balance between factory refinement and aftermarket edge. Underneath the striking exterior, the mufflers incorporate **internal baffling** that preserves a smooth yet aggressive exhaust note, striking a perfect harmony between compliance and character. Whether cruising down the highway or carving through tight corners, these mufflers amplify the Dyna s inherent power delivery, transforming the ride into a dynamic symphony of engine and exhaust harmony. Built to Harley-Davidson s exacting standards, the 80258-99 set is backed by the brand s legendary reliability, ensuring durability for thousands of miles while keeping the Dyna s exhaust system in perfect working order. For riders who demand both style and substance, the **Screamin Eagle Slash Slip Mufflers and Baffles** are the ultimate statement piece a fusion of Harley-Davidson heritage and cutting-edge aftermarket innovation.

### **Pros and Cons of Buying Harley-Davidson 80258-99 Dyna Screamin Eagle Slash Slip Mufflers & Baffles**

1. **Enhanced Sound Quality** These mufflers are designed to produce a deep, aggressive, and resonant exhaust note that aligns with the Screamin Eagle branding. They deliver a more aggressive tone compared to stock or aftermarket mufflers that prioritize quietness or smoothness.

2. **Improved Performance** The slip-on design allows for better exhaust flow, which can contribute to a slight increase in horsepower and torque, especially when paired with a high-flow exhaust system. This is particularly noticeable in low-to-mid RPM ranges.

3. **Aesthetic Appeal** The Screamin Eagle branding adds a bold, custom look to the bike, appealing to riders who want a more aggressive or "tuned" appearance. The black matte finish and distinctive shape make them stand out.

4. **Durability** Harley-Davidson parts are generally built to last, and these mufflers are made with high-quality materials designed for heavy-duty use. They are less likely to warp or corrode quickly compared to cheaper aftermarket alternatives.

5. **Compatibility** These mufflers are specifically designed for the Harley-Davidson Dyna platform (specifically the Slash model), ensuring a proper fit without the need for extensive modifications.

6. **Resale Value** If you plan to sell the bike later, having OEM or high-quality aftermarket parts like these can make the bike more appealing to buyers who prefer stock or Harley-approved modifications.

7. **Ease of Installation** As slip-on mufflers, they are relatively straightforward to install, especially if you have basic mechanical skills or access to a mechanic. No major welding or exhaust system alterations are required.

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1. **Noise Level** These mufflers are **extremely loud**, often exceeding legal street-legal noise limits in many jurisdictions. If you ride on public roads frequently, you may need to install a secondary muffler or baffle to comply with local noise laws. Some states require a maximum of 95 dB, and these mufflers can easily exceed that.

2. **Restrictive Flow (Compared to Free-Flowing Options)** While they improve sound, they do not offer the same level of unrestricted exhaust flow as a full free-flowing exhaust system. If your primary goal is performance, you might see better gains with a more aggressive setup.

3. **Weight** Heavy exhaust systems can affect handling, especially on sportier or lighter bikes. The Screamin Eagle mufflers are substantial, which may slightly reduce agility in cornering or quick maneuvers.

4. **Cost** These are not cheap. Priced around **$1,000 $1,500** (or more depending on dealer markups), they represent a significant investment, especially if you re on a budget. The cost may not be justified if you re only looking for minor sound or aesthetic upgrades.

5. **Maintenance and Wear** Like any exhaust system, these mufflers can develop leaks, rust, or internal corrosion over time, particularly if exposed to harsh weather or salt. Harley parts are durable, but they are not immune to wear.

6. **Legal Restrictions** In many areas, aftermarket exhaust systems that exceed noise limits are illegal on public roads. You may need to install a secondary muffler or baffle to meet legal requirements, which adds complexity and cost.

7. **Not Ideal for Daily Commuting** The aggressive sound and potential noise violations make these mufflers impractical for daily use in urban or suburban areas. They are better suited for track days, cruising, or off-road riding where noise restrictions are less strict.

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The **Harley-Davidson 80258-99 Dyna Screamin Eagle Slash Slip Mufflers & Baffles** are an excellent choice if you prioritize **sound, aesthetics, and a slightly improved exhaust note** without a full exhaust swap. They offer a **bold, aggressive look and a deep, resonant tone** that many Harley enthusiasts love, especially for track use or custom builds. However, they are **not ideal for daily street riding** due to noise concerns and legal restrictions in many areas.

If you re looking for **better performance gains**, a **full free-flowing exhaust system** (like a Dyna Super Glide or Sportster setup) would be a more practical choice. If you simply want a **custom sound without major modifications**, these mufflers deliver but be prepared for the noise and potential legal hurdles.

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- You want a **bold, aggressive sound** and don t mind the noise.

- You plan to ride **mostly on private property, tracks, or in areas with lenient noise laws**.

- You appreciate the **Screamin Eagle branding** and want a **custom look** without a full exhaust swap.

- You re willing to invest in **additional baffles or a secondary muffler** to meet street-legal noise requirements.

- You **commute daily** in urban or suburban areas where noise laws are strict.

- You prioritize **performance over sound** and would benefit more from a free-flowing exhaust.

- You re on a **tight budget** and can achieve a similar look with cheaper aftermarket options.

- You dislike **loud exhausts** and prefer a quieter, more refined tone.

- If noise is a concern, look for **Harley-approved baffled mufflers** (like the **Dyna Super Glide mufflers**) that offer a balance between sound and legality.

- For a **budget-friendly alternative**, consider **slip-on mufflers from brands like Akrapovic or Dyna Audio** that offer custom tones without the full price tag.

- If you re building a **track-focused bike**, these mufflers are a great choice, but pair them with **legal street mufflers** for daily use.

Ultimately, these mufflers are a **fantastic upgrade for enthusiasts who love the Screamin Eagle sound**, but they require careful consideration of **legal, practical, and budgetary factors**.

Details:

Scraped, Corrosion, Scratched, Removed From: 2002 Harley-Davidson Dyna with unknown miles, Please review all pictures to assess the condition of item. The flanges are spread. This is a used part and may have scratches scuff, corrosion, wear, etc. Harley Dyna Screamin Eagle II Slash Cut Slip On Mufflers NO BAFFLES 80258-99, This muffler is in good condition with minor cosmetic flaws.

Every effort has been made to accurately depict and describe the condition of this part.

part #: 8025899 prices

• $125.00-$425.00

specifications cyclemufflermo:

• for models: Dyna, Screamin, Eagle
• for makes: Eagle, Harley
• brand: Harley-davidson
• mpn: 80258-99
• type: Muffler

general cyclemufflermo:

• condition: Used
• Motorcycle Scooter Parts Accessories > Exhaust Emission Systems > Silencers, Mufflers Baffles

offer cyclemufflermo:

• best offers: True
• quantity: 1
• sold: 0
• options: Ship-to-home
• availability: In Stock
• started: May 4, 2026

seller cyclemufflermo:

• rating: 100.0%
• city: Lake Odessa, Michigan
• # reviews: 3435

returns cyclemufflermo:

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

shipping cyclemufflermo:

• transit: 3-7 Days
• cost: $0.00
• class: Standard
• type: Fixed
• service: USPS Ground Advantage
• carrier: USPS

payments cyclemufflermo:

• other
• wallet: Google-pay
• credit card: Visa

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