I took my car to a shop to get a noise from under my car checked out. ( the noise that happens only at 2200rpm!)no welds on the heat shield were broken or damaged. He said it was the whole downpipe. He said there is a pipe inside of that pipe that is rusty and broken within the pipe. He said I need to get a new downpipe from the dealer. It on the part of the pipe that curves like a "s" closest to the big cat-converter under the middle of the car. I was wondering if the j-pipe you guy use on here will work well? It going to be big bucks from the dealer. I hate the noise, sounds Like I drive a 83 buick skylark piece of crap!