FMF Racing Powercore 4 Muffler & Header System — Fits Yamaha TTR125/TTR125L

SKU: FMF044136
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Sale price$279.99
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About FMF Racing

FMF Racing engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full FMF Racing lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Boost Your Yamaha TTR125 Performance

The FMF Powercore 4 Muffler and Header system is the ultimate upgrade for the Yamaha TTR125 and TTR125L. If you are looking to wake up your small-bore trail bike, this complete exhaust system provides the perfect combination of increased horsepower, improved torque, and a deeper, more aggressive exhaust note.

Why Upgrade to Powercore 4?

  • Complete System: Includes both the muffler and header for maximum performance gains.
  • Increased Power: Noticeable improvement in acceleration and top-end speed.
  • Durable Design: Built to handle the abuse of trail riding and beginner motocross.
  • Easy Installation: Designed specifically for the TTR125 platform for a direct fit.
  • Aggressive Sound: Gives your bike a professional, race-inspired sound.

The Yamaha TTR125 is a fantastic bike, but it can often feel restricted by the stock exhaust. The FMF Powercore 4 system removes those restrictions, allowing your engine to rev more freely and generate more power. Whether you are using your TTR125 for play riding, pit bike racing, or teaching new riders, this exhaust system makes the bike more fun and responsive. Its robust construction ensures it will last for years of trail riding, making it a smart investment for any TTR owner. Transform your riding experience with the reliable, high-performance FMF Powercore 4 exhaust system available now at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About FMF Racing

FMF Racing engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full FMF Racing lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Boost Your Yamaha TTR125 Performance

The FMF Powercore 4 Muffler and Header system is the ultimate upgrade for the Yamaha TTR125 and TTR125L. If you are looking to wake up your small-bore trail bike, this complete exhaust system provides the perfect combination of increased horsepower, improved torque, and a deeper, more aggressive exhaust note.

Why Upgrade to Powercore 4?

  • Complete System: Includes both the muffler and header for maximum performance gains.
  • Increased Power: Noticeable improvement in acceleration and top-end speed.
  • Durable Design: Built to handle the abuse of trail riding and beginner motocross.
  • Easy Installation: Designed specifically for the TTR125 platform for a direct fit.
  • Aggressive Sound: Gives your bike a professional, race-inspired sound.

The Yamaha TTR125 is a fantastic bike, but it can often feel restricted by the stock exhaust. The FMF Powercore 4 system removes those restrictions, allowing your engine to rev more freely and generate more power. Whether you are using your TTR125 for play riding, pit bike racing, or teaching new riders, this exhaust system makes the bike more fun and responsive. Its robust construction ensures it will last for years of trail riding, making it a smart investment for any TTR owner. Transform your riding experience with the reliable, high-performance FMF Powercore 4 exhaust system available now at GGCRACING.

Product Details

Product Description

About FMF Racing

FMF Racing engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full FMF Racing lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Boost Your Yamaha TTR125 Performance

The FMF Powercore 4 Muffler and Header system is the ultimate upgrade for the Yamaha TTR125 and TTR125L. If you are looking to wake up your small-bore trail bike, this complete exhaust system provides the perfect combination of increased horsepower, improved torque, and a deeper, more aggressive exhaust note.

Why Upgrade to Powercore 4?

  • Complete System: Includes both the muffler and header for maximum performance gains.
  • Increased Power: Noticeable improvement in acceleration and top-end speed.
  • Durable Design: Built to handle the abuse of trail riding and beginner motocross.
  • Easy Installation: Designed specifically for the TTR125 platform for a direct fit.
  • Aggressive Sound: Gives your bike a professional, race-inspired sound.

The Yamaha TTR125 is a fantastic bike, but it can often feel restricted by the stock exhaust. The FMF Powercore 4 system removes those restrictions, allowing your engine to rev more freely and generate more power. Whether you are using your TTR125 for play riding, pit bike racing, or teaching new riders, this exhaust system makes the bike more fun and responsive. Its robust construction ensures it will last for years of trail riding, making it a smart investment for any TTR owner. Transform your riding experience with the reliable, high-performance FMF Powercore 4 exhaust system available now at GGCRACING.

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