who knows the header pipe diameters?

[gstwizzle]

I was wondering if anyone knew the .... inside and outside diameters of the header pipe?  On the stock gs500 exhaust.

[Wrecent_Wryder]

T7

[tussey]

I want to say 35mm ID and 37mm OD but don't quote me. Go and measure. I think I have a post with this info. I will go look it up.

[tussey]

http://gstwins.com/gsboard/index.php?topic=29561.0

[s4gs]

Just measured the headers on my 04 with a set of digital verniers. OD varies between
is 35.1mm & 35.2mm. Not about to pull them of to measure the ID but my guess would be they
have a 1.2 wall thickness.

[gstwizzle]

Thanks....