Stainless Works Header Flange BBC 2-1/8" Port NIxGM~ Now that's awesome

Now that's awesome

engineered to match up perfectly with the factory air inlet pipes

The C7 Track Edition Exhaust is not for the faint of heart

Our Fabrication and Engineering Departments put countless R&D hours into creating an exhaust with impressive power gains and an intoxicating tone

select powdercoating colors are available on this manifold

Stainless Works Header Flange BBC 2-1/8" Port NIxGM~ Now that's awesomeBig Block Chevy round port header exhaust flanges. These flanges come as a pair and are designed for 2 1 8" primaries, laser cut from heavy duty 3 8" thick 304 stainless steel for superior resistance to warping from high heat, and comes with a limited lifetime warranty.