Gruppe S v2 Headers Question
Can someone with either the above or aftermarket headers please tell me Inner Diameter (Bore) of the headers compared to standard headers.
Many thanks
Stuart
Many thanks
Stuart
Originally Posted by coulty
Can someone with either the above or aftermarket headers please tell me Inner Diameter (Bore) of the headers compared to standard headers.
Many thanks
Stuart
Many thanks
Stuart

Originally Posted by stevebt
dont know what the diameter is on standard headers but on the groupe s ones i have in the garage they are 38/39 mm

Stuart
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