Vibration??

[BOOSTD5.4]

I have my 12 Boss now with full AR long tube headers into catted 3 inch x pipe, new K member and front A-Arms, and lastly a driveshaft shop carbon fiber driveshaft. The car vibrates like CRAZY! I cannot figure where this is coming from?? It is bad in 1st gear and seems to get better in the higher RPM's and MPH......

Any advise?

Thanks!

Mike

 

[Mr. Freeze]

Check if the a arms are bolted in securely, sounds like something maybe from the k member install?

 

[USNjocson]

I had that problem. The side pipe bolts wiggle out easily after being removed a couple times.

 

[darreng505]

What kind of motor mounts you have?

 

[86Fbody]

Possible it is the A arms if they have stiffer bushing, thought the EPAS didn't like stiffer bushings. Either that or maybe the DS angle isn't right?