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CLICK HERE to customize your own Yamaha
DYNO JET POWER COMMANDER APPROVED TUNING CENTER 
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56-4441
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- 3-7 hp increase on most models
- No remapping of fuel curves required on most models
- Easy do-it-yourself installation with hand tools, complete detailed instructions and stainless steel hardware
- Huge weight savings over OEM mufflers
- Solid billet adapters, CNC machined from 6061 aluminum
- Highly polished 2-piece billet end caps CNC machined from 6061
- Largest standard performance cores in the industry at 2.50”
- Stainless steel perforated cores for maximum flow and deep exhaust tone
- 100% pure carbon fiber shells
- High temp resins for low outside exhaust temperatures
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