Donut, Air /Exhaust Mild Steel Full Donut 1-3/4in. (44.4mm) 2.03mm Wall, BBC GM LS Knock Sensor Conversion

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Donut, Air /Exhaust Mild Steel Full Donut 1-3/4in. (44.4mm) 2.03mm Wall, BBC GM LS Knock Sensor ConversionPFEDTM1750 Perfect for custom exhaust systems or intake manifold fabrication where tight bends are required. May be cut to accommodate any degree of bend necessary. All donuts have a wall thickness of 2 mm. NOT INTERNALLY WELDED. Proflow's Donut Tubing is available in stainless or mild steel, and in a wide range of sizes to fit almost any project. Formed to the 1D sizing standard, these donuts allow for very tight radius turns with a smooth, wrinkle