KHROME WERKS - 40FSL-4031-CHR - 4" HP Plus® Slip-On Muffler - '25-'26 Harley-Davidson Softail Low Rider ST FXLRST, Softail Low Rider S FXLRS
For newer '25-'26 Harley-Davidson models, the 40FSL-4031-CHR 4" HP Plus Slip-On Muffler gives riders the same slash-down design in chrome, preserving the stock silhouette while adding a laser-engraved Khrome Werks "K" logo to the 4" 16-gauge muffler body. Made in the USA and engineered for performance, style, and sound. Because it slips over the stock header rather than replacing it, installation stays simple while still changing the bike's tone and finish.
Features
- Engineered for performance, style and sound
- Slash down design maintains original styling
- Features laser engraved Khrome Werks "K" logo
- 4" 16-gauge muffler body
- Made in the USA
Specs
- End Cap Style: Slash-Down
- Muffler Color/Finish: Chrome
- Type: Slip-On
- Outer Diameter: 4"
- Product Name: Muffler
- Model: HP-Plus®
- Riding Style: Street
- Units: Each
Frequently Asked Questions - KHROME WERKS - 40FSL-4031-CHR - 4" HP Plus® Slip-On Muffler - '25-'26 Harley-Davidson Softail Low Rider ST FXLRST, Softail Low Rider S FXLRS
How do I know if this part fits my vehicle?
Check the fitment information listed on this page against your exact year, make, model, and (where applicable) trim, engine size, or configuration. If your exact vehicle isn't listed, or you're not sure, use the product chat on this page or contact our support team before ordering - we're glad to help confirm fitment.
What does it mean if a product is listed as universal fit?
Universal fit means the product is designed to work across a range of vehicles, not that it's guaranteed to fit every one. Compare the listed measurements, mounting requirements, and connector or hardware specs against your specific vehicle before ordering, since some installations may need additional hardware or minor fabrication.
Where can I find installation instructions for this product?
General installation notes are provided above where available. For detailed step-by-step instructions, refer to the manufacturer's documentation included with the product, or use the product chat on this page for questions about difficulty, required tools, or whether professional installation is recommended.
What if I have more questions about this product?
Use the product chat on this page for fitment, specs, installation, and compatibility questions, or contact our support team directly for help before you order.
