Thread: AR Downpipe Vs. ER 4" Catless
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      02-09-2018, 07:00 AM   #16
AmooManiak
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Drives: 21 X5 M50i -> M2C -> 21 M5C
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Location: Illinois

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General question - does anyone know if gaskets on the turbo side need to be replaced when installing catless downpipes? If so, is there a part number?
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