I have a set of rewarder headers they have these inserts at end of pipes really want to take out, but they won't come out what the f---   Need some edvise.



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If you have the bolt out already (duh, right?) The fastest and safest way is with the headers OFF the engine is to use a block of wood and a dead blow hammer. Simply lay the headers on a soft, scratch proof surface, like the lawn, some carpet or a bunch of towels. Place the block of wood over the end bell holding it perfectly flat and whack the snot out of it. It normally takes one really well executed smack. then they slide right out. I normally hose them down with Aerokroil or PB Blast first.

Don't hit your fingers. ..

GT

I have done that already GT still nothing  and tried a slide hammer and nothing.



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That normally works. They are likely rusted in.

GT