Biltwell exhaust flanges 1.75" build your own pipes 1 3/4" chopper Evo evolution
Construction: Cold-rolled 16-gauge (0.060”/1.5mm) x 1-3/4” O.D. high-tensile steel tubing, raw finish. One tube (two ends) per order.
Each tube includes 2 header flanges (1 on each end.) If you have tube scraps from other exhaust pipe projects laying around, these tubes are a great way to squeeze out another set of pipes for customers or friends.