If only looking for mild steel to then coat later once done. Schoenfeld have very inexpensive mandrel bends. A lot of dirt track roundy round guys use their tubing. I did my entire 3-1/2" with X Pipe dual exhaust with their bends & some straight pipe to the mufflers & then reduced it down to 3" up over the axle back thru the stock tips for less then $200.00 on my car.