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the Silber Turbos swingarm dramatically reduces unsprung weight while increasing structural rigidity
My friend said Silber isn't as bitchin' cause it costs less
your Arctic Cat snowmobile is held back by conservative OEM tuning
mix in some fuel additive and throw down 175+HP
Replacement Turbo Airbox for your Silber Turbo G4 850
Wastegate Springs & Accessories Adapt the Silber Turbos swingarm dramaticallyLose your wastegate springs or misplace your spanner? No big deal, you can order replacements right here. Please select which spring from the drop down. As a reminder, 7PSI is the larger diameter spring, 5psi is the smaller diameter blue spring, 3psi is the smaller diamter natural or sometimes black, spring.