[HWYSTR455]

All the stainless steel block-offs always burn thru, not sure how a plug would fair. It would be better, last longer, but how much longer is the question.

There is a slight performance aspect to the crossover, tho not sure how much of a benefit there is. I suspect 'conventional' methods to provide the same benefits would be just as effective, possibly more so.

I used to block them off but gave up. It's just not a priority IMO.


EDIT: My understanding is that the best way to block the crossover on OE heads is to fill them, then grind them smooth and to shape.

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