i've found these on ebay.com...

[url="http://cgi.ebay.com/ebaymotors/Stainless-Steel-Exhaust-Header-Lexus-IS300-01-03-04-05_W0QQcmdZViewItemQQcategoryZ33631QQihZ013QQitemZ230193241103QQrdZ1QQsspagenameWD2V"]ebay clicky[/url]

they are listed for the is300, but im hoping they will fit the gs300.... can anyone confirm this?

also in the pictures it looks like it has 3 holes for the o2 sensors, so maybe they wont set off the cel light?

trying to remember from the top of my head, are there 2 pre-cats on the standard manifold?
on my previous car i removed the pre-cat leaving the main cat and it passed emissions fine.

has anyone got a manifold on their gs?

cheers

shake

i doubt it will fit the GS, easily, but i recon some minor reworking of the thing could make it fit to the remainder of the system

how would a na supra header fit?
i want more power!

again its a different car...it can be made to fit......as could the IS300 one