Git brand new butterfly washes with the new exhaust intake.....but they are different than the oems...

Bigger hole, rougher "ridge" and larger overall...

Was thinking of just using the stockers...or is there a reason for the design change?

The new ones should be fine. The old ones should be fine, too; they don't tend to wear out much.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.