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I own a F56 S with a Helix DDC intercooler. The factory intercooler hoses didn't seem inadequate to me. I know the JCW uses a different intercooler not certain what hoses they use.
Would make meth install much easier than having to tap/drill the stock rubber hoses. Other than that, waste of money IMO.
the oe pipe to the motor is widely aluminium, if you go for meth inject. As the pipes for S and JCW have different diameter, the stated overall usage looks strange. As stated before wast of money, even mor weight ;-)