I am selling a set of new stainless header flanges for an ls1. They accept 1 3/4" tube and are 3/8" thick. You can use them for n/a headers or a set of custom Twin Turbo headers.
They are the exact same ones I am using on my TT Chevelle.

You won't find them cheaper anywhere!

ASKING $125 SHIPPED!

 

I'll take them,money sent.

Thanks.

 

Nitro where did you buy these I need a pair?

 

I believe that you can get these from Stainless Works