Nut question? Need answer ASAP

[TalonRacer024]

Does anyone know what size are the nuts on the Apex'i system. I would think they would be the same as stock? But what are the stock sizes. I have looked everywhere and can't find an answer.

 

[TalonRacer024]

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[FourG63 97GST]

what nuts? r u talkin about the exhaust system

 

[TalonRacer024]

yeah the apexi N1 turbo back

my bad

 

[TalonRacer024]

Ok i got the specifactations from the catback but what are the sizes of the nuts/bolts that connect the downpipe to the 02 housing( i think thats right) i am installing tommorow so any help would be great.