What is the recommended maximum combined thickness of shims?
Amped Custom - Fusion Engine Poppet Shims | Pack of 4
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Open Apr 05, 2026 - 12:34 PM
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Apr 05, 2026 - 12:34 PM
The recommended maximum combined thickness of polarstar shims is 0.035 inches. Staying within this limit ensures the poppet valve operates correctly and prevents performance issues.
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Amped Custom - Fusion Engine Poppet Shims | Pack of 4
These poppet shims are used to fine tune your stock or low flow poppet. (If you are purchasing a poppet, you can receive a shim kit at a discounted rate on the Low Flow Poppet item page)Each shim kit comes with the four following sizes: 1x Pink .015 1x Yellow .020 1x White .025 1x Coral .030 Each gu...
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