Not Ranked
My only concern about welding or even the silicone would be if they neded to be removed at some future date. As it is the push on collectors are a bit of work to get loose if one needs to pull the side pipes for some reason. They are even harder to install once they have been through many heat cycles so I guess some steel wool cleaning would be in order. I have not yet installed my new pipes in which I have gone from bolt on flange collectors to push ons. I recall on my older Cobra I used header wrap just around the seams above the collector with one large (18")hose clamp. It worked . I hope these new pipes do not leak or I may be again crossing the same trail . BTW my wife helped me with a little sidepipe install trick. Use CRISCO inside the sidepipe females. Once installed they smoke for a bit, smell like pancakes but hey ...they slip on beautifully !!
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