FMF Racing
FMF Racing KTM 350-500XCF-W 20-23/HQV FE250-501 20-23/ GG EC250-350 (2021) Hex Q4 Muffler - 045646
- SKU:
- FMF045646
- UPC:
- 045646
- MPN:
- 045646
- Availability:
- Regularly stocked product
Description
Is the FMF Q4 Muffler a direct bolt-on replacement?
Professional installation is recommended for the FMF Q4 Muffler to ensure optimal fitment and secure integration with your vehicle's exhaust system.
How much does the FMF Q4 Muffler increase exhaust flow?
The FMF Q4 Muffler achieves a nearly 10 percent increase in exhaust flow, significantly enhancing engine breathing and overall performance.
The FMF 4-Stroke Q4 Muffler enhances engine breathing and performance, achieving a nearly 10 percent flow increase for street and racing applications. Its patented Power Bomb module and steel wool packing enable controlled sonic expansion and a richer exhaust note. Trust this FMF Racing muffler for a confident upgrade in your vehicle's performance.
Key Features
- FMF's patented Power Bomb module
- expansion and contraction of exhaust sonics
- flow increase of nearly 10%
- surface of the perforated core lets the sound exit into the absorbing material (steel wool packing)
- allows the air to expand cool and ramp back up at higher air pressures (RPMs)
- Power Bomb is a "pre-muffler" of sorts
Why Choose the FMF 4-Stroke Q4 Muffler
Delivers a richer, more powerful exhaust note with controlled sonic expansion.
Achieves a nearly 10% increase in exhaust flow for enhanced engine breathing.
Provides a smoother power delivery as exhaust pressure builds with RPMs.
Transforms your ride with a premium, race-inspired exhaust sound profile.
Who Is This For?
Street Performance — 8/10
Nearly 10% flow increase enhances engine breathing.
Racing Competition — 8/10
Nearly 10% flow increase enhances engine breathing.
Engine Performance — 9/10
Nearly 10% flow increase enhances engine breathing.
Exhaust Note / Sound — 7/10
Absorbing material and Power Bomb affect sound.
Track / Autocross — 8/10
Nearly 10% flow increase enhances engine breathing.
High Speed Desert Running — 8/10
Nearly 10% flow increase enhances engine breathing.
Vehicle Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2020–2021 | KTM | 350 XCF-W | Base |
| 2023 | KTM | 450 XCF-W | Base |
| 2020–2021 | KTM | 500 XCF-W | Base |
Additional Resources
Browse More: Shop All Muffler — Exhaust, Mufflers & Tips
Warranty Information
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2020-2021 | KTM | 350 XCF-W | Base |
| 2023 | KTM | 450 XCF-W | Base |
| 2020-2021 | KTM | 500 XCF-W | Base |
Additional Information
Clearance Item: |
N |
MPN: |
045646 |
Proposition 65: |
N |
Case Lot Quantity: |
1 |
Category: |
Exhaust, Mufflers & Tips>Muffler |
Product Level: |
Premium Performance |
Street Performance: |
8/10 |
Racing Competition: |
8/10 |
Engine Performance: |
9/10 |
Exhaust Note / Sound: |
7/10 |
Track / Autocross: |
8/10 |
High Speed Desert Running: |
8/10 |