Vibration after test pipe install

[W Cole]

After installing my test pipes I am getting an intermittent vibration in the gas pedal/floor board at WOT in 1st gear only. I think the engine is torqueing a bit and things are rubbing although everything looks good when static and I don't see any obvious marks.

Anyone have a similar issue? Should I just start pounding away on the heating shield with a mallet?

[aussiem3]

Originally Posted by W Cole

After installing my test pipes I am getting an intermittent vibration in the gas pedal/floor board at WOT in 1st gear only. I think the engine is torqueing a bit and things are rubbing although everything looks good when static and I don't see any obvious marks.

Anyone have a similar issue? Should I just start pounding away on the heating shield with a mallet?

Make sure when the test pipes were installed gaskets were replaced or the old ones were reused. I had new ones put in when the TPs were done. No vibration here so far. It has been just a week and around 150 km. Still early days.

[SYZ]

Did you do the install yourself? Get under the car and flex the exhaust front to back. You will find if it is hitting something and will get your answer.

[W Cole]

Originally Posted by SYZ

Did you do the install yourself? Get under the car and flex the exhaust front to back. You will find if it is hitting something and will get your answer.

I did do it myself and made sure to replace the gaskets. I'll try to get under the car again this weekend and wiggle things around.

[BPMSport]

Check the heatshields after the header flanges on top.

[M3ANMACHINE]

I had a slight vibration on mine a week or so after install. It was the clamp that holds the TP to the X Pipe. Simply needed to be tightened a bit more after the initial install, and the vibration hasn't been back since!

[ZEEM3R]

same thing happened to me after my test pipe install. took the car to bmw and had them install the pipes proper way and vibration has not come back since then.

[BIGW0RM]

I feel that in my gas pedal too. I suspect it's the lack of that bracket that connect the x pipe to the tranny that you have to cut off.

[SYZ]

Originally Posted by W Cole

I did do it myself and made sure to replace the gaskets. I'll try to get under the car again this weekend and wiggle things around.

Remember that the exhaust will expand and its positioning will be slightly more to the rear of the car when it is hot. Make sure you have adequate clearance all around your test pipe clamps. They may have to be reclocked.