Tube, Air /Exhaust Stainless Steel Full Donut 1-3/4in. (44.4mm) 2.03mm Wall Water It has a bolt circle

It has a bolt circle of 120mm (4-23-/32") and a 102mm (4") cut out

RWF-619-06-06BK

Acorn Short Open Chrome Wheel Nuts - M12 x 1

It also accomodates for the larger FG heater hose inlet

this shifter is one of the most dependable shifters on the market

Tube, Air /Exhaust Stainless Steel Full Donut 1-3/4in. (44.4mm) 2.03mm Wall Water It has a bolt circlePFEDTS1750 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, our donuts allow for very tight radius turns with a smooth, wrinkle