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Dyno Results

Harley Davidson Softail Custom

by 29040451 • July 30, 2014

Tags:dyno g4x g4xtreme Harley Davidson Horsepower Motorcycle Torque when power matters whenpowermatters

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Harley Davidson XR 1200 →

G4Xtreme News

  • Honda CRF450
  • Suzuki GSXR 600
  • Harley Davidson XR 1200
  • Harley Davidson Softail Custom
  • Suzuki Hayabusa
  • Chevy Big Block – Built By Tyler Crockett
  • Harley Davidson XR 1200 with Mods
  • Harley Davidson XR 750

“I tested G4X an now the Special Sauce goes in my engines”

Tyler Crockett
2011 OPA World Champion

" I have used many limited slip additives in the differential and the differential continues to chatter when hot.I put G4 in the differential and the chatter is gone! You have a great product."

George Cichon
SCCA-GT3

“All I can is WoW, Your product works Period!”

Donnie Stear
Owner-Tuner-Engine Builder for PCD

" this was not Fairy Dust or like anything else I have come across on the market. I am very impressed with G4X it really works and lives up the the claims that are made."

James Ankley
MASTER TECHNICIAN - Ray C's Harley Davidson

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