I wrote this last time, but I would like to add.
Used on APRIO4jp5 Lead Valve and replaced with OEM.
The OEM Lead Valve is a Stainless Steel plate, but this Material:By switching to Carbon, the intake resistance of the Piston is reduced compared to the OEM, and more air mixture can be sucked in.
As a result, the engine revved up immediately after starting from a standstill, and we were able to experience an increase in response.
I think it is a good part to consider when reviewing the intake and exhaust.
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