[Rifle]

You can shift the whole catback based on the hangers. Stock should be fine, just reposition them. You should also try and adjust your mid pipe by adjusting how your front pipe sits on the trans hanger bolt. Take it out, slide the whole piping, bolt it back up. Minimal Gains, but enough. A lot of exhausts run below the diff and make contact with the ground, and that
Could be inturn what pushed it against the diff. I personally have a flat spot in my invidia mid pipe due to being lowered and scraping. You can see the occasional sparks from under my car. :p