Please help with rubbing/scraping noise

[drivewaysk8er]

I just installed my new exhaust which is A'PEXi Dual N1. I think that this problem does not have to do with my exhaust but I just finished doing that none the less. Whenever my car flexes foreward (ie. during breaking or initially going into reverse) and is in motion, there is a rubbing/scraping noise coming from the rear. I can't narrow it down to a specific part or anything other than just saying the rear. I know that it has to do with the car flexing foreward. When I break it happens until I let off the breaks or the car stops and when I go in reverse it happens until the car levels out. The sound sounds like metal on metal and is cyclical as if it were happening during every rotation of the wheel. I know that this pretty broad "A rubbing sound when the car flexes" but if anyone could maybe tell of something that happened to them that I could try or suggest anything that would be great. Thanks in advance.

[kyle1911]

Exaust piping rubbing on the differential ? there isnt much clearence there stock thats most likely the cause.

[drivewaysk8er]

Yea, actually that's exactly what it was. It was the driveshaft rubbing the resonator. I just adjusted one of the exhaust mounts a bit and created a bigger gap. Thanks for your help.