Fernco coupler
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Fernco coupler
Hey does anyone know the dimensions of the Fernco coupler used to be a smoothe bellow. sick of the accordian lookin baffle, saw some dude at the track with a z28 n he said it's worth it.
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i want to say 3x3... Not 100% sure though. I tried this one time and didnt have alot of luck getting it to fit. Some say its easy and worth it some say its hard on the lid and might crack it. If end up doing it i will find a more flexable type of rubber to use.