After i took out my cats and ran the straight pipes, my car started vibrating like crazy. Especially at idle in drive. When im in park it doesnt happen. I checked all the welds and there were no leaks. Checked and tighted all the bolts and they were fine. A friend of mine did the same thing to his chevy blazer and he said that he had the same vibrations too.

Is this normal? How can I correct this? Please any help or input would be appreciated. Thanks in advance.

 

can anyone out there help me??? would it be the airtubes? cause the shop that did it for me re-routed the airtubes back into the straight pipe. would this cause the vibrations at idle?

anyone else have a similar situation with the vibrations/ and if anyone else is running a straight pipe, what did you guys do to the airtubes? thanks for any help.

 

As in the car is gyrating? or there is a lot of rattle? Rattle could be coming from the heat shield.