Originally Posted by Staples

No they shouldn't... They should dent at the most. Those aren't the proper flex pipes to use in this situation since that area sits low. I'm lowered and have hit the flex pipes multiple times, minus a few scratches and a small dent (didn't affect flow), it came out fine.

This is what should be used...



As you can see the whole area is cross layered inside, no "wrinkling" or "filler".