Front End Issues

Hey everyone,

So i noticed this after my header install so we will keep that in mind n hope to figure out what the deal is. When i step on the gas from a stop i feel a rubbing and what sounds like a thumping like something is hitting the top n bottom of something coming from the front end. I feel it also when turning and hitting the gas going left or right. When i do a power break to test to see if its the headers hitting the steering rack, but the mounts are solid and no clunk when doing a power break. This is really starting to annoy me, what could this be?

Bump

not LT's should edit the post LOL BBK Equal length shorties, my mechanic took a ride with me and then drove it himself and said he could not feel or hear what i am feelin and hearing, im getting really frustrated cause i know something is loose, something is hitting something and i cant figure it out,