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View Full Version : Vibration after Flowmaster 40'S


VMARAUDER
08-11-2012, 01:03 AM
Just had Flowmasters installed (welded) and drove down to The St Louis area - noticed after the car got nice and warm (high speeds of 90 plus) that I get vibration on turns, in reverse and after I rev the engine to 4k rpm and release quickly ( I get like a after vibration when back to normal rpm). Should they have put that balance back on the drivers side?
Marauderjack
08-11-2012, 02:52 AM
Get a pair of CV exhaust dampers from a junk yard.......your vibration will be gone or very greatly reduced!!:cool:
Blackened300a
08-11-2012, 04:32 AM
I had a vibration too. They welded the pipes a little too much on angle and my tips were hitting the inside of the bumper cover just enough for it to be audible. Just bend the hanger on the tip to bring it in slightly. That worked for me.
Marauderjack
08-11-2012, 07:06 AM
Another idea......when the pipes get HOT they "grow" as much as 1/2" in length and mine (over the axle bend) would touch the fuel tank when good and hot!!:argue:

Since yours does it after high speed driving that could be it??

The dampers eliminate rattling at idle and just off idle!!

Good Luck!!
Krytin
08-11-2012, 02:49 PM
+1 on pipe to frame/body panel contact after warm-up/expansion. Not uncommon problem on new fit-up of exhaust components.
VMARAUDER
08-11-2012, 05:57 PM
After looking extensively I saw that the pipe over the axle was hitting a screw head to the fuel pump. The muffler shop fixed it. Was driving me crazy.
Thanks guys.
Not related to exhaust...are the power seat switches supposed to be illuminated?
marauder410
08-11-2012, 10:28 PM
when i had my aero's installed at a minekie they did th same thing they installed them a little off and when was nice and hot they pipes were touching the gas tank and vibating terrible

only MBS will ever touch any my cars on exhaust needsfor now on :) they do awesome work
Marauderjack
08-12-2012, 02:53 AM
After looking extensively I saw that the pipe over the axle was hitting a screw head to the fuel pump. The muffler shop fixed it. Was driving me crazy.
Thanks guys.
Not related to exhaust...are the power seat switches supposed to be illuminated?

Glad you got it fixed....mine was hitting the fuel hat screw too!!:cool:

My power seat buttons are not lit but I never paid any attention to them befor so they may be burned out??:confused:
MM2004
08-12-2012, 04:33 AM
Good information on the exhaust rattles.

And the power seat switches do not illuminate.

;)

Mike.