I have a 91 honda prelude that needed a new exhaust – otherwise ran fine. I got hold of an aftermarket OBX stainless manifold and drop pipe, muffler and some other things so I set out to do a custom exhaust with part stainless and part non-stainless. That in itself is a discussion, however, it isn’t my issue here. The issue is that the down pipe which is basically a 90 degree dual 2″ pipe to a Y was at first way too low. I removed 2 ” from the vertical dual pipe section and had it rewelded, then its too tight against the oil pan. I had another shop weld IN 1/2″ and now it is STILL tight against the back section of the oil pan though probably now as badly.
I am DONE having stuff rewelded trying to make it fit. Will the fact that my down pipe is tight touching my oil pan be a huge problem? I know – i have heard about vibration and heat and all that stuff. I wish i had never done custom exhaust, stainless, and just kept it stock. thanks.
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