I have a 2016 rzr 900s it’s has 4 inch gdp portals and running 35s. I have a red spring (not installed) for my primary with the black and green markings. I think it’s like a 77 psi spring from what i read. I also have the adjustable weights. My question is what size weights should I be running in order to bring me back to stock power and or get more out of my bike? Also i want to run 37s. What weights would I need for those? Any help would be great!

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