What was the side effect of the swap.

I have them in mine and my steering wheel vibrates with the engine at idle... I dont know if this is normal or not, I never got to drive my gsr before hand.. I bought it needing a rebuild.

Since its so much stiffer i figured there would be some side effect in the name of performance.. But what is the norm?

 

along with the vibrating steering wheel at idle, i've gotten a couple minor squeeks and rattles inside the dash area since i put the inserts in. but, it was also right before winter, and cars always make more noise during the winter. so as it warms up here in the next month or so, we'll see how it turns out.