'97 Jetta. I clamped this pipe onto my old cat successfully after peeling and grinding off the rust flakes that were the old pipe. I used two clamps at each joint because I felt leaks after installing with just one clamp. The clamps at the rear of this pipe hit a small support piece that ties the body together at midline. I had to grind the bolts off at the nuts on the clamp. That makes it only tap occasionally at certain combinations of engine speed and body position on a hill or whatever. I could grind the nuts a little bit and probably make it stop completely. The parts were cheap, the install was easy and the car is factory quiet again, so it's all good. Haven't had a rust belt winter yet to assess durability.