Bone stock, eh. Do you know what all mods were made to it since then, aside from the bridgeport? Possible something is playing into this issue.

 

do a youtube video of walking around the outside of the car with engine on and idling and your headlights on. and like loki said, list all mods to the car both cosmetic and performance.

 

Im not 100% sure on everything done to it. I know its the half bridge, CAI, The guy had the stock ECU tuned at mazda zoom zoom in columbus ohio. I'm sure there might be a few more small things.

Also i was looking through my videos and found one i forgot to post. while driving if I'm just cruising at a steady speed at like 1/8th throttle it makes a weirds sound and feels like the car wants fall on its face. I don't think that its detonation. could this just be because of the half bridge? as long as im on the throttle its fine

 

Could it be the SSV it opens up at 4000 RPM and that’s where I start having issues at is 4000

 

The SSV doesn't apply the brakes . Also your issues are past the SSV activation rpm, you're almost at 5k in the video.

The rattling noise sounds like something in the driveline. Does it happen at the same rpm regardless of gear or at the same speed regardless of rpm? When you're on the throttle the driveline is held tight by the engine torque, but when you release it goes slack and the the wheels start torquing it in the opposite direction, winding down the engine. Maybe a bad driveshaft U-joint or poor alignment of all the parts. It may be completely unrelated to the jumping issue also.

DSC codes?