Features:
- FMF developed the PowerCore 4 to increase the horsepower and torque throughout the entire power curve producing a noticeable power increase that is usable and compatible with every style of riding
- Aluminum construction and stainless steel Hi-Flo endcaps make for the perfect balance of performance and strength
- Removable spark arrestor included
Specifications:
- Product Name: Muffler
- Type: Slip-On
- Model: Powercore 4
- Style: Oval
- Pipe Material: Stainless Steel
- Muffler Material: Aluminum
- Muffler Color/Finish: Anodized Champagne
- End Cap Style: Conical
- End Cap Material: Stainless Steel
- Weight: 5.5 lb
- Units: Each
- Riding Style: ATV
Fitment:
| Year | Make | Model |
| 1986 | Yamaha | YFM 350 X Warrior |
| 1987 | Yamaha | YFM 350 X Warrior |
| 1988 | Yamaha | YFM 350 X Warrior |
| 1989 | Yamaha | YFM 350 X Warrior |
| 1990 | Yamaha | YFM 350 X Warrior |
| 1991 | Yamaha | YFM 350 X Warrior |
| 1992 | Yamaha | YFM 350 X Warrior |
| 1993 | Yamaha | YFM 350 X Warrior |
| 1994 | Yamaha | YFM 350 X Warrior |
| 1995 | Yamaha | YFM 350 X Warrior |
| 1996 | Yamaha | YFM 350 X Warrior |
| 1997 | Yamaha | YFM 350 X Warrior |
| 1998 | Yamaha | YFM 350 X Warrior |
| 1999 | Yamaha | YFM 350 X Warrior |
| 2000 | Yamaha | YFM 350 X Warrior |
| 2001 | Yamaha | YFM 350 X Warrior |
| 2002 | Yamaha | YFM 350 X Warrior |
| 2003 | Yamaha | YFM 350 X Warrior |
| 2004 | Yamaha | YFM 350 X Warrior |
| 2005 | Yamaha | YFM 350 X Warrior |
- Availability:
- STG Part Number:
- F|1506-044015|0
- Manufacturer's Part Number: