Those who installed HFC's, is there a factory gasket between the header and cat?

1slow370

there is a gasket but they are 2 metal compressable ring gaskets that will only work if your catpipes/testpipes have the little .5" extension of tube on the flange. Ialso had to drill out the 1 threaded hole in each header flange to use the new hardware as it is a different thread than the new bolts and i didn't want to use the factory stud of death. if someone did order parts that don't have the extra tube sticking out you better call them up and order some flat gaskets. if you do have the pipe extension head over to your closest parts counter and order the 2 rings from nissan. the old rings should be smashed up on your factory cats and even if you pry them off with a screwdriver they won't be reusable.

edit: that does not look like the picture in my manual it should clearly show the two rings.

edit2: took another look through the manual and that is the picture from the exhaust section and it's wrong look at the picture on EM-34 it is correct

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