L live2beel Well-known member Lifetime Membership Jan 24, 2025 #1 I see the Polaris boost 850 and the N/A 850 heads both have different part #'s. Anyone know what's different between them.Thanks
I see the Polaris boost 850 and the N/A 850 heads both have different part #'s. Anyone know what's different between them.Thanks
TRS Life Member Lifetime Membership Jan 24, 2025 #2 The coolant port in the head is drilled out for more flow to the turbo.