Our polished weld els are an elegant and sleek finish to any setup--the inside is polished as well. These 304 Stainless Steel Schedule 10 weld els fittings are used for exhaust manifold fabrication. The best components you can use to create an equal length turbo manifold. Made of 304 stainless steel and carry a lifetime warranty! Made in India, the stainless steel capital of the world, these fittings follow strict ASTM standards, set forth by manufactures all over the globe! Each fitting is stamped with the size, lot #, and "ASTM A 403 WPW 304". These same weld els are used by the top turbo manifold manufactures across the nation, the best components you can use to fabricate exhaust turbo manifolds. The extra thick pipe allows you to create a deep penetrating weld needed for the stress and vibration caused by turbocharged engines! Turbocharger bracing is sometimes not needed because of the sturdiness of the manifold. Say goodbye to the ever cracking 16 gauge stainless steel manifolds littering the market today!