1. Motorcycle Silencers, Mufflers & Baffles For Sale
  2. sku: 14806305142505751
  3. THUNDERHEADER 133988

THUNDERHEADER 133988 Exhaust Muffler Header Pipe Ad

fits model: Dyna. make: Harley, Davidson. year: 1999–2006.

133988 Thunderheader 1999-2006 Harley Davidson Dyna Exhaust Muffler Header Pipe Read Ad

( Brand: Thunderheader ), ( Manufacturer Part Number: 133988 ), ( Type: Muffler ), ( Placement On Vehicle: Exhaust )

Review THUNDERHEADER Harley Davidson Exhaust Muffler Header Pipe Read Ad fits DYNA 1999–2006

Thunderheader 133988 - Premium Exhaust, Header, and Muffler System for 1999-2006 Harley-Davidson Dyna

Experience the exhilarating roar of your Harley-Davidson Dyna with the Thunderheader 133988 exhaust system. This high-performance aftermarket solution is meticulously designed to elevate your bike's power, sound, and aesthetic appeal.

Crafted specifically for Harley-Davidson Dyna models produced between 1999 and 2006, this Thunderheader exhaust system includes a header pipe, muffler, and all necessary hardware for a seamless installation. The header pipe is engineered to optimize exhaust flow, reducing backpressure and increasing horsepower, resulting in a more responsive and efficient ride.

The muffler, on the other hand, offers a deep, resonant exhaust note that's both pleasing to the ear and authentic to the Harley-Davidson brand. It's expertly tuned to strike the perfect balance between sound and compliance with noise regulations, ensuring a satisfying ride without disturbing the peace.

Thunderheader 133988 is made from high-quality stainless steel, ensuring durability and resistance to corrosion, even in harsh weather conditions. The polished finish not only complements the sleek design of your Dyna but also adds a touch of refinement and sophistication.

Installation is straightforward, thanks to the comprehensive instructions and user-friendly design. However, it's always recommended to seek professional assistance to ensure proper fitment and safety.

Upgrade your Harley-Davidson Dyna with the Thunderheader 133988 exhaust system. Experience improved performance, a captivating sound, and a stylish enhancement that sets your bike apart from the rest. Ride with confidence and pride, knowing you've invested in a premium aftermarket solution from Thunderheader.

Pros of Thunderheader 133988 for Harley-Davidson Dyna (1999-2006):

1. Improved Performance: Thunderheader exhaust systems are known for enhancing an engine's performance, providing a smoother, more powerful ride.

2. Quality Construction: Thunderheader uses high-quality materials such as 304 stainless steel, ensuring durability and resistance to corrosion.

3. Thundering Sound: This exhaust system offers a deep, powerful exhaust note that many riders find appealing.

4. Aesthetic Appeal: Thunderheader exhaust systems have a distinctive look that can enhance the overall appearance of your bike.

Cons of Thunderheader 133988 for Harley-Davidson Dyna (1999-2006):

1. High Price: Thunderheader exhaust systems are on the pricier side compared to some other aftermarket exhaust options.

2. Loud Exhaust Note: While some riders appreciate the loud exhaust note, it may not be suitable for those who prefer a quieter ride or live in noise-sensitive areas.

3. Requires Professional Installation: Installing a Thunderheader exhaust system can be complex and may require professional assistance, adding to the overall cost.

Ending Conclusion:

The Thunderheader 133988 exhaust system for Harley-Davidson Dyna (1999-2006) offers improved performance, quality construction, and an appealing aesthetic. However, it comes with a higher price tag and may produce a loud exhaust note. If you're looking to enhance the performance and look of your bike and don't mind the noise or the cost, the Thunderheader exhaust system could be a great choice. If not, you might want to consider other aftermarket exhaust options that may better suit your needs and budget.

Recommendation:

If you decide to purchase the Thunderheader 133988 exhaust system, it's recommended to have it professionally installed to ensure proper fitment and function. Also, be prepared for a louder exhaust note and consider the additional cost for professional installation in your budget.

Details:

Item has rusting, missing paint due to age and use. Best sold for reconditioning and or repair use due to condition age. Item have signs of wear and tear scuffs scratches dings dents. Item pulled from a 2003 Dyna FXDL, mounting bracket not original however did mount directly to transmission housing case cover.

As seen lower exhaust pipe has damage rash indentations. 1999 2006 Harley Davidson DYNA Thunderheader Exhaust Muffler Header Pipe READ AD.

specifications cyclemufflermo:

  • for models: Dyna
  • for makes: Harley, Davidson
  • for years: 1999-2006
  • brand: Thunderheader
  • mpn: 133988
  • type: Muffler
  • placement on vehicle: Exhaust

seller cyclemufflermo:

  • city: Darby, Pennsylvania
  • rating: 99.2%
  • # reviews: 1961

shipping cyclemufflermo:

  • transit: 5-11 Days
  • class: Standard
  • type: Calculated
  • cost: $119.72
  • carrier: FedEx
  • service: FedEx Ground / FedEx Home Delivery

offer cyclemufflermo:

  • started: November 28, 2025
  • availability: In Stock
  • options: Ship-to-home
  • sold: 0
  • quantity: 1

payments cyclemufflermo:

  • other
  • wallet: Google-pay
  • credit card: Diners-club

general cyclemufflermo:

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

returns cyclemufflermo:

  • paid by: Buyer
  • policy: Returns Accepted
  • time: 30 Days
for models: dyna, for makes: harley, davidson, for years: 1999-2006, type: muffler, placement on vehicle: exhaust,
category: motorcycle parts > motorcycle scooter parts accessories > exhaust emission systems > silencers, mufflers baffles, sku: 14806305142505751,
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