I had a dual exhaust system with a flowmaster 70 series installed and during the install I noticed under the bed directly behind the hitch a part that looks like another plate mount was there...any one have any idea what that is??

Also the Flowmaster 70 with dual tailpipes sounds great deep and mellow and just a tad louder than stock...

I had a dual exhaust system with a flowmaster 70 series installed and during the install I noticed under the bed directly behind the hitch a part that looks like another plate mount was there...any one have any idea what that is??

Also the Flowmaster 70 with dual tailpipes sounds great deep and mellow and just a tad louder than stock...

How about some more info. You say under the bed, so I assume you have an SUT. I'm also going to assume you mean the rear hitch. What do you mean behind it? Are there bolt holes?
Is it in the middle or toward the side. Where is it in relation to the rear axle, bumper, etc...

Picture?

Ken, Tried to do pic with camera phone but it was blurred from movement......

HT...middle, directly behind rear hitch in front of axle...2 sets of bolt holes are present with the spacing of a license plate

Dan,

It sounds like you are referring to the mount that air compressor.

P and Alex, I bet you are right....thanks for answering...

Is this what you're talking about?? If so, that is the air compressor.