pointby

Mine broke twice and the last time it was in to be repaired they just replaced it with a solid section. (without saying anything - the wife dropped off the car) It's been running like that for probably 30,000 miles with no issues but now that I've noticed it I'm looking at having a flex joint reinstalled.

77'911

It should not be a problem as long as your driveline mounts are in good shape. You might consider upgrading them. Just because the flex joint is gone, puts the stress points in different locations, especially if your twisting the rpms up on the higher side.

qfrog Ti20

I think he is using a 3" downpipe but I'm not certain which exhaust he is using.

I have a flexible section in my 3" downpipe.

BJC::wokka wokka

Better have some stiff mounts if you don't run one.

MikekiM@PureMS

In fact the standard E30 M3's don't have any at all. And they do have some surprising engine movement as well.

They run a standard 4-2 header then 2 pipes all the way back with no flex anywhere. Kinda surprised myself, but it seems to work.

B5Davem

the time that it broke when I was playing rally driver was the bad one. The front 2-into-1 pipe broke there and caught the ground at 50 mph on a dirt road . It wrapped the exhaust in a pretzel around the rear axle . It was a loud drive home and took sawing the pipe to get it off. I then had to install an entire new exhaust except for being able to save the muffler.