These mufflers provide significantly more airflow than stock for a substantial increase in performance, delivering better throttle response and top-end power. Performance Mufflers are designed for maximum airflow and sound quality without substantially increasing sound level output. All mufflers except 09-118, 09-122 & 09-126 include removable spark arrestors. No fuel changes required.

Features:

• Delivers an additional 4.2 horsepower.
• This muffler is for closed course competition only.
• This muffler is coated with black ceramic coating.
• Includes interchangeable flaming skull and checkered flag logos.