So, I got the front tires replace by Nissan, which is supposedly "specially" made to fix tire feathering, but I have a concern.

I am planning on getting a new suspension (coliovers) and new performance tires (not sure which yet, but will gladly take suggestions, track/street type) but I'm worried that the defect will eat up the tires and cause other problems.

Will the coilovers alone fix the feathering or are front a-arms and rear toe/cambers arms also necessary?

 

It is supposed to be a front TOE issue. I believe exagerated camber will make it worst, but camber won't fix it. You have to keep front TOE very close to zero. See Nissan's latest specs. After you install the coils and tires, run to the alignment shop. A good one.

 

FYI, for the rear to get back to spec you will need camber arms and toe BOLTS. They are sold on sets and there are plenty of links around. Any alignment or suspension shop can install for you. I have the Kinetix camber arms.

 

so there is no aftermarket part to fix the front toe?

 

Front toe is adjustable from factory. That's how they adjust your steering wheel etc... It is front camber that is NOT adjustable, you need adjustable camber arms for that.