Features:

• One Piece Solid Design
• CNC Machined Header/Center
• Increased Volume for Even More Power
• Straight Through Header Bolt for Easier Service
• High Quality Polished Aircraft Grade Aluminum
• 15% Quieter than the Speed Torpedo V.4
• Zenoah 20cc - 30cc Engine Size
• Automotive Grade Sound Deadening Material for Deep Bass
• Set Screw Locking System Prevents Bolts Backing Out
• Removable Exhaust Tip
• Weight: 360g - 370g

Now also includes 9mm exhaust tuning tip!
Reduce noice, increase back pressure, additional torque! Now you have a choice. Use the stock pre-attached 10mm tip or the included 9mm tip.

1/12/2012: 9mm Tuning Tip included