I have a 2001 Ford Taurus SE 3.0 dual overhead cam.The dpfe hoses blow off.

yes. I have and they are tight.sometimes the back pressure coming out of tubing actually lifts the transmission dipstick out.that is how powerful it is. Okay I will cut the cat off and check it out. will exhaust clamps work on a catalytic converter as I do not have a welder?

Clamps will work fine.

thank you.I will post back after I get done.might be a week as a car is a ways away.