fits year: 1989–2020.

( Brand: Thunderheader ), ( Manufacturer Part Number: 1238 ), ( Type: Heat Shield )
The Thunderheader 20 1-2 Heat Shield Slip-On Mufflers with part number 1238 89 are a superior upgrade for your motorcycle's exhaust system. These mufflers are designed specifically for Harley-Davidson models, providing a unique and distinctive sound that enhances your riding experience.
Crafted from high-quality stainless steel, these Thunderheader slip-on mufflers are built to last. The 20 series mufflers feature a 2-inch inlet and a 2.5-inch outlet, ensuring a smooth flow of exhaust gases for optimal performance. The 1-to-2 design provides a balanced exhaust flow for improved engine response and increased power output.
One of the standout features of these Thunderheader mufflers is the integrated heat shield. This shield is designed to protect your motorcycle's engine components from the intense heat generated by the exhaust system. The shield is made from durable, heat-resistant materials and is carefully positioned for maximum effectiveness.
The Thunderheader 20 1-2 Heat Shield Slip-On Mufflers also feature a slip-on design, making installation a breeze. They can be easily fitted to your motorcycle without the need for any welding or permanent modifications. This makes them a great choice for riders who want to enhance their bike's sound and performance without the hassle of a full exhaust system upgrade.
In terms of appearance, these Thunderheader mufflers are sure to turn heads. They feature a polished stainless steel finish that gives them a sleek, modern look. The mufflers are also available in a black powder coat finish for a more stealthy appearance.
In conclusion, the Thunderheader 20 1-2 Heat Shield Slip-On Mufflers with part number 1238 89 are a high-quality, durable, and performance-enhancing upgrade for your Harley-Davidson motorcycle. With their integrated heat shield, slip-on design, and distinctive sound, these mufflers are a great way to customize your bike and take your riding experience to the next level.
Pros of Thunderheader 20 1-2 Heat Shield Slip-On Mufflers (1238 89):1. Improved Performance: Thunderheader slip-on mufflers are designed to increase the horsepower and torque of your motorcycle, providing a smoother and more powerful ride.
2. Enhanced Sound: These mufflers are known for their deep, powerful exhaust note, which can significantly improve the overall sound of your bike.
3. Durability: Thunderheader mufflers are made of high-quality materials, ensuring they can withstand the rigors of regular use and harsh weather conditions.
4. Easy Installation: Slip-on mufflers are relatively easy to install compared to full exhaust systems, saving you time and money.
Cons of Thunderheader 20 1-2 Heat Shield Slip-On Mufflers (1238 89):1. Increased Heat: Slip-on mufflers can generate more heat, which may require additional heat shielding or modifications to your bike to prevent damage.
2. Noise Levels: While the deep, powerful sound can be appealing, it may be too loud for some areas or times of day, potentially leading to noise complaints or fines.
3. Cost: Thunderheader mufflers are not inexpensive, and the cost of purchasing and installing them can add up.
Conclusion:Thunderheader 20 1-2 Heat Shield Slip-On Mufflers (1238 89) can significantly improve the performance and sound of your motorcycle. However, potential drawbacks such as increased heat and noise levels, as well as the cost, should be carefully considered before making a purchase. If you are willing to address these potential issues and are ready to invest in a high-quality, powerful exhaust system, these mufflers may be a great choice for you.
Recommendation:Before purchasing, ensure that your bike is compatible with Thunderheader mufflers and that you can address any potential issues, such as heat management and noise control. It may also be helpful to research and compare prices from various retailers to find the best deal. Ultimately, if you are looking for improved performance and a powerful, distinctive exhaust note, Thunderheader 20 1-2 Heat Shield Slip-On Mufflers (1238 89) could be the right choice for you.
Thunderheader in. Heat shield for slip-ons and mufflers fits Thunderheader slip-on muffler no: h25-010, true dual specs type units each weight Heat shield for slip-ons and mufflers part: manufacturer 1238 overview of Thunderheader in. 7am-8pm Mon Fri, 7am-6pm sat sun.