Crush bending leaves a characteristic depression along the throat of the bend, restricting airflow and harming performance Both these processes distort the pipe diameter around the bend area.Ĭrush bending leaves a characteristic depression along the throat of the bend, which reduces the airflow (and doesn’t look particularly clean either). This is a problem with some tube bending methods including crush bending and wrinkle bending. This chokes the exhaust volume, reducing the air and gas flow and decreasing performance. This buckling will reduce the cross-sectional area of the pipe. While impressive, this feat wouldn’t be particularly good for exhaust tubes because the tube can buckle at the point of bending. Some people are strong enough to bend metal pipes using only their arms.
For exhaust performance junkies, only ball mandrel bending will do. What’s the best way to bend an exhaust pipe? Well, it depends on what you want to achieve.įor some mass-market manufacturers, peak performance isn’t as important as speedy and economical manufacturing.īut for some exhaust enthusiasts, only the best will do.
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