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I’m not certain I would call the OEM bolts “cheap”. Torque to yield bolts are designed to stay consistently tight over a wide temp range over time. Over tightening a fastener out of design spec. causes additional distortion. Which will likely cause additional wear somewhere in the blower or cylinder head. Stainless steel has a greater expansion range than other alloys and will likely yield a greater variation in clamping force during heating and cooling cycles. I’m not poo pooing your product as it likely serves a purpose for those who constantly make changes. However in an OEM application where consistent clamping force over time is needed for longevity, the OEM fastener is likely a better choice.
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