KHROME WERKS - 40FSL-4031-BLK - 4" HP Plus® Slip-On Muffler - '25-'26 Harley-Davidson Softail Low Rider ST FXLRST, Softail Low Rider S FXLRS
Khrome Werks' 40FSL-4031-BLK 4" HP Plus Slip-On Muffler is built for '25-'26 Harley-Davidson models with a slash-down design that keeps the bike's original styling intact, finished in black with a laser-engraved Khrome Werks "K" logo. The 4" 16-gauge muffler body is engineered for performance, style, and sound, and it's made in the USA. Swapping in a matched pair like this is a straightforward way to update a tired-sounding stock exhaust without touching the header pipes underneath.
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
- Units: Each
- Model: HP-Plus®
- Outer Diameter: 4"
- Product Name: Muffler
- Muffler Color/Finish: Black
- Riding Style: Street
- End Cap Style: Slash-Down
- Type: Slip-On
Frequently Asked Questions - KHROME WERKS - 40FSL-4031-BLK - 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.
