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Discussion Starter #1
has anyone replaced these before, I've never had to replace them before some one did a very good job when they installed the exhaust system. do i just bolt the gasket on or do i use some kind of sealer with it. is there any prep work that should be done after i take the old ones out.
 

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Is it a 3 bolt collector? Just remove the old gasket and make sure both flanges are clean of any old gasket material. Don't buy cheap gaskets.
 

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Make sure the flange plates arent warped either, this is usually the reason they leak.
I like using a torque wrench when tightening the bolts to keep the torques close enough to prevent warping.
 
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