Proflow precision laser cut from 3mm 304 Stainless Steel, these A-B Locking Collector Tabs offer a secure, and effective way of securing your collectors or slip-joints, to the rest of your custom exhaust system. Complete with an A and B tab per set, as well as hardware, Stainless bolts, nuts and washers. Although these are Stainless Steel, 304 grade has a enough carbon in it to allow it to be welded to Mild Steel or Stainless Steel. Sold as a set of 8 allowing 2 pairs of tabs per collector.