S&S Cycle

S&S Cycle Grand National Slip-On Muffler For Harley

Item: P384149

An aggressive sound and nice horsepower kick with a simple installation make the Grand National slip-on system a no-brainer. Read More

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Product Details

S&S Grand National Slip-On Mufflers For Harley


  • Up to 12% more horsepower and 6% more torque (when used with Stealth Air Cleaner Kit)
  • Race inspired design
  • Removable dB reducer for back pressure and sound tuning
  • Meets governmental regulatory J2825 levels for sound
  • Deep performance rumble replaces stock whisper tone
  • All hardware included
  • No mapping required
  • 50-state legal
Made in the USA
Product Description
34 Customer Reviews
34 4.5/5
0 Questions & 0 Answers
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