stromung sounds good but... - United Bimmer Community

**billycuth** · 08-13-2005, 09:31 PM

I finally got the four bolts (new) put back in the exhaust. I started her up and she purrs nice, except for this inherent rattle. it makes the thing sound ricey. Now, when moving, she sounds really good, but at a stand still, she rattles a little..

any ideas on what it could be? The rattle is in the back, not the front towards the four bolts, so I don't think anything is loose there...

help is much appreciated...

Storamin · 08-13-2005, 09:36 PM

Is the exhaust brand new? Try driving the car some and see if it changes the resonance. Exhausts need to be broken in a bit.

**B_w.** · 08-13-2005, 09:39 PM

i dont think breaking it in will remove the rattle. check to make sure nothing is loose. maybe there is something broken inside the pipes

**billycuth** · 08-13-2005, 09:40 PM

it is brand new... straight from Stromung. Built last week.

**jrhaile** · 08-13-2005, 10:46 PM

is it vibrating and hitting something underneath like your bumper?

**BMW328is** · 08-14-2005, 02:40 AM

Did you replace the donuts in the flanges?

**billycuth** · 08-14-2005, 07:52 AM

not hitting anything haile. its a metal on metal rattle.

I forgot about the doughnut. Yes, there was one metal doughnut I did put back in but it was from the old setup (the new one didn't come with it). Should I buy a replacement?

**komodo** · 08-14-2005, 07:55 AM

The donut is about $9 at your local dealership.

**EuroStyle** · 08-14-2005, 08:35 AM

Quote:

Originally Posted by billycuth

not hitting anything haile. its a metal on metal rattle.

I forgot about the doughnut. Yes, there was one metal doughnut I did put back in but it was from the old setup (the new one didn't come with it). Should I buy a replacement?

You are supposed to replace both gasket rings when you install an exhaust. They are a one time use product. Turner Motorsport sells an entire exhaust installation kit for the e36, but it is 100.00. At least you can use it as a reference...e36 kit is on this page

It may not fix your problem, but it is a good place to start. Also while you're under the car, you could check to make sure your cat converter hangers and exhaust hangers are in good shape, and secure.

-Matt

**Zerrus** · 08-14-2005, 09:49 AM

Did you keep the stock heat shields when you replaced?

PS, I want a video.

**billycuth** · 08-14-2005, 11:32 AM

zerrus, you want video of what? I posted a DIY on this project. It got moved to that section of this board.

eurostyle - thanks. There was nothing that came with my new exhaust. I bought a kit from Bavauto. I got one with rubber gaskets. The old exhaust was metal to metal (no rubber) so I thought it would be okay. But I think the rattle is related to the catback connection and not the brackets near the bumper. The old bolts were bent, so I got new ones, but I think they were too long...

**EuroStyle** · 08-14-2005, 06:41 PM

So do you still have the rattle, or did the new bolts take car of it?

I hate my bimmer is being a bitch

I'm sure you do to.

Edit: This was my 100th post

**Zerrus** · 08-14-2005, 06:44 PM

Quote:

Originally Posted by billycuth

zerrus, you want video of what? I posted a DIY on this project. It got moved to that section of this board.

I want a video/sound clip of what the exhaust sounds like, that's one of the brands I'm thinking about.

**billycuth** · 08-14-2005, 08:14 PM

okay. I'll try to get one when I get rid of the rattle. sounds a little ricey right now.

go to understeer.com... chris has a couple clips on his site. it's bad ass.

**Spieluhr** · 08-15-2005, 03:33 AM

get a rubber mallet, and start tapping on things until you find it.