
KHROME WERKS 4-1/2" HP-Plus® Slip-On Mufflers
In stock items will be shipped within 1-3 days.
You can return the products within 14 days for a full refund, check our returns policy.
We accept many payment methods

In stock items will be shipped within 1-3 days.
You can return the products within 14 days for a full refund, check our returns policy.
Enhance your Harley-Davidson experience with these premium slip-on mufflers. Dyno-tested, they deliver a remarkable 12% increase in torque and a 7% increase in power. Designed for maximum performance, these mufflers not only look great but also sound incredible.
Enjoy the distinctive Khrome Werks signature tone that commands attention without the irritation of high-frequency noises. The absorptive baffle, covered with stainless steel mat and high-temp fiberglass, ensures a smooth sound.
Experience improved torque and horsepower right when you hit the throttle. The billet aluminum tips are not only stylish but also functional, allowing for 360° rotation at 90° increments, finished with a high-temp powder coating.
Optional bolt-in inserts are available, complying with the SAE J2825 sound test without sacrificing performance. Sold in pairs and proudly made in the U.S.A, these mufflers are the perfect addition to your motorcycle.
We ship to:
We do not ship to the Canary Islands, Ceuta, or Melilla.
Shipping costs are calculated automatically at checkout based on destination and weight.
Free shipping may be offered for qualifying orders, as specified on our website.
Orders are processed within 1–2 business days after payment confirmation. Orders placed on weekends or public holidays are processed the next business day.
If your order is delayed or arrives damaged, you must notify us within 14 calendar days. We will investigate the issue and offer a resolution in accordance with applicable consumer protection laws.
In accordance with Royal Legislative Decree 1/2007 (Ley de Defensa de los Consumidores y Usuarios), you have the right to withdraw from your purchase within 14 calendar days from the date of receipt, without giving any reason.
To exercise this right, contact us via email or through our website, providing your order number and contact details.
If you want to return an item, please contact us first to give you detailed instructions.