Poly urethane inserts question

[PLYMOUTH TURBO]

I just installed all four motor mounts with prothane inserts, is it normal for my car to vibrate a little after the installation of these inserts?

 

[1G-3G Eclipses]

Were they the firmer mounts?
If so, then I do believe that, that would make you feel a little bit more vibration.

 

[cardot33]

thats exactly what they do, I've heard a lot of people say they'll rattle your teeth out.

 

[NewToBoost]

ive got all the mounts replaced on my tsi, with poly and its rattle's but dosent bother me too much. rattle is nothing for how long these things last.

 

[Only2G4Me]

Yes, you will feel more vibration in car. NewToBoost is right though, the extra vibration is nothing compared to performance gain. I installed the same mounts on my 97 GS-T, and it eliminated all of the wheel hop I had with stock mounts. Also, give it some driving time. The mounts should settle a little, and vibration shouldn't be as bad.

 

[DSM98GSX]

Vibration is a good thing when you install these......That means theyre doing what theyre supposed to. You should notice a big difference.

 

[Defiant]

Holy crap.

Step off the track, there's a train coming.