VANCE & HINES - 47321 - Hi-Output RR Exhaust System - Matte Black
The VANCE & HINES 47321 is built to perform — designed as a direct-fit replacement with OEM-level quality and durability. Key features: PCX™ (Power Chamber Exhaust) technology; Chambered high-flow catalyst cartridge designed to increase torque; Headers step from 1-3/4” to 1-7/8” to 2”.
Features
- PCX™ (Power Chamber Exhaust) technology
- Chambered high-flow catalyst cartridge designed to increase torque
- Headers step from 1-3/4” to 1-7/8” to 2”
- 4” Muffler body
- Lightweight high grade 304 stainless steel construction
- Hand TIG welded
- Fits with standard (non-stretched) saddlebags
- Include hardware and mounting instructions
Specs
- Color/Finish: Matte Black
- Design/Configuration: 2-Into-1 System
- Riding Style: Street
- Units: Each
- Style: Megaphone
- Model: Hi-Output
- Muffler Diameter: 4”
- Color/Finish: Black
- Product Name: Exhaust System
- Material: 304 Stainless Steel
- Type: Race
Complete Your Setup
This exhaust is also available in the opposite finish:
- VANCE & HINES 27321 — Hi-Output RR Exhaust System — same exhaust, opposite finish, identical fitment (verified model-by-model, every model/year matches)
- VANCE & HINES 66045 — Fuelpak 4 Tuning Module — confirmed fit for Electra Glide Police FLHTPI (2017-2020), FLHR Road King (2017-2020), FLHRXS Road King Special (2017-2020), FLHT Electra Glide Standard (2019-2020), FLHTCU Electra Glide Ultra Classic (2017-2019), FLHTK Ultra Limited (2017-2020), FLHTKL Ultra Limited Low (2017-2019), FLHTKSE CVO Limited (2017-2020), FLHX Street Glide (2017-2020), FLHXS Street Glide Special (2017-2020), FLHXSE CVO Street Glide (2017-2020), FLTRK Road Glide Limited (2020), FLTRU Road Glide Ultra (2017-2019), FLTRX Road Glide (2017, 2018-2020), FLTRXS Road Glide Special (2017-2020), FLTRXSE CVO Road Glide (2018-2020)
- VANCE & HINES 66043 — Fuelpak 4 Tuning Module, M8/Pan America — confirmed fit for Electra Glide Police FLHTPI (2021), FLH Electra Glide Revival (2021), FLHR Road King (2021-2022), FLHRXS Road King Special (2021-2022), FLHT Electra Glide Standard (2021-2022), FLHTK Ultra Limited (2021-2024), FLHX Street Glide (2021-2023), FLHXS Street Glide Special (2021-2022), FLHXST Street Glide ST (2022-2023), FLTRX Road Glide (2021-2023), FLTRXS Road Glide Special (2021-2022), FLTRXST Road Glide ST (2022-2023)
Between the two tuners above, every model/year this exhaust fits is covered except: FLHTKSE CVO Limited model-year 2021, FLHXSE CVO Street Glide model-years 2021-2022, FLTRK Road Glide Limited model-years 2021-2023, FLTRKSE CVO Road Glide Limited (no current Fuelpak module covers this model at all), and FLTRXSE CVO Road Glide model-years 2021-2022 — no current Fuelpak module covers those specific years/models as of this writing. Ask us using the chat widget on this page if you have one of those and want the latest tuner compatibility.
FAQ — Hi-Output RR Exhaust
+ How loud is the Hi-Output RR Exhaust — is there a decibel rating?
Vance & Hines does not publish an official decibel rating for this exhaust, so we won't guess a number here. It's a race-derived 2-into-1 system, so expect a noticeably louder, deeper exhaust note than stock. If you're subject to a local sound-ordinance limit, check your state/local regulations, since we can't confirm a dB figure to compare against.
+ Does this exhaust increase horsepower?
Vance & Hines states the PCX™ (Power Chamber Exhaust) technology and chambered high-flow catalyst cartridge are designed to increase torque. The brand doesn't publish a specific horsepower or torque number for this system, so we won't quote one here — if exact dyno figures matter to your decision, ask us using the chat widget on this page and we'll help track down what's available.
+ What's included in the box?
This is a complete Hi-Output RR system — lightweight 304 stainless steel construction (hand TIG welded), headers that step from 1-3/4” to 1-7/8” to 2”, a 4” muffler body, mounting hardware, and installation instructions are all included.
+ Can I run this with saddlebags?
Yes, with standard (non-stretched) saddlebags — Vance & Hines confirms this system fits with standard bags. It is NOT recommended for Touring bikes with stretched bags, and it will not fit '17-'22 Tri Glide/Freewheeler trikes.
+ Will this fit my Tri Glide or Freewheeler?
No — Vance & Hines specifically states this exhaust will not fit 2017-2022 Tri Glide or Freewheeler models, even though those share the Touring platform with models this exhaust does cover.
+ Will this fit my bike — do the years matter?
Yes, fitment is year- and model-specific. This exhaust fits 20 Harley-Davidson Touring models spanning 2017-2024, including Electra Glide, Road King, Street Glide, Road Glide, and Ultra Limited variants, with the exact years covered varying by model. Use the Fitment tab above or set your bike in the Ride Finder at the top of the page and we'll confirm the exact match before you order.
Frequently Asked Questions - VANCE & HINES - 47321 - Hi-Output RR Exhaust System - Matte Black
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.
