I have an 02 wrx with stock steering rack, whiteline front seat bar kyb coilovers and a few other front end mods that are handling related such as a strut brace. Anyways for the past few weeks I occasionally hear this loud popping noise when I'm backing out of a parking space or going over a speed bump while turning the wheel. Probably happens once every hundred miles or so. Anyways last night after the sharks game I had 4 people on my car so a lot of weight. I was driving through a parking lot and hit a speed bump I didn't see going about 10mph. Way too fast for my car. Anyways Now I hear this popping noise around all turns and over every slight bump. I can't seem to locate it's origin. Any suggestions? Thanks

 

Check your axles at the boots, check your endlinks, check your springs/coilovers. I'd be leaning toward the coilovers or endlinks first, but could also be CV joints since you say it happens when turning mostly.

 

Transmission mount with the subframe might be softening up. I used a solid mount and stopped the clunking for me.

 

It was my swaybar bushings in combination with my transmission mount thanks for the suggestions guys I appreciate the help