So, I've noticed this probably a couple years ago. Only happens around 30-34 mph, upon acceleration, in 2nd gear. Doesn't have to be WOT. Can happen at 1/4-1/2 throttle. It mainly seems to be coming from the steering wheel(maybe the front end). Between 30-34 mph, it is just a brief, small vibration/shimmy. And, I don't know if it's all in my head, but it seems more noticeable after a 90 degree turn(traffic light, or right turn from a stop sign). It does not happen at any other speed or gear.

Possibly related to 2nd gear? But if it's a transmission issue, not sure why I would be feeling it through the steering column/wheel. I have been through multiple suspensions and wheels/tires since I started noticing this, so I know it's definitely not a suspension or wheel/tire issue.

This is how the car sits right now... KW V3s, 17x9 +45 and 255 RS3s sqaure, Whiteline 30mm FSB, and that's about all I can think about that could possible be related to this. I have done some work in the engine, with removing exhaust manifolds a couple times. I have had to remove the passenger side motor mount to do the work. And also jacked up the engine to make room for the job. So I have wondered if maybe the other motor mount or possibly the transmission mounts have been damaged from being over worked?

Let me know what you guys think. The car always has an up to date alignment, and balanced wheels/tires. Any help would be greatly appreciated!

 

What are your toe settings up front? I have mine set to 0, but I had it set 1/8th out and experienced a front end vibration also.

 

0 toe up front

 

Figured I'd bump this again. Hasn't gotten worse, but the other day I did notice it through the shifter. Which has me thinking possibly a motor/tranny mount?

Only notice it in 1-3 gear and below 4k rpm.

 

It's allllll in your mind.

 

I got the same thing on my AP1