[Th3xf4ctor]

Originally Posted by thompsac25

Yep, sounds risky. I know a few people that work over at Jake Sweeney...I'll see if I can get a hookup. Doubtful, but worth a shot lol

I've taken mine in but it was freezing cold out and they blamed it on something else plus my SA was an asshole and didn't do several of the items I asked to be done or checked. When I move I'll take it in. It is what it is for now.

[carson3950]

I have just installed the ARM Catless downpipes and there is a vibration inside the cabin when at idle. I looked and nothing is touching them. Im running a MHD stage one plus. Anyone know why the inside of the car is vibrating like this?

[CarAbuser]

Originally Posted by carson3950

I have just installed the ARM Catless downpipes and there is a vibration inside the cabin when at idle. I looked and nothing is touching them. Im running a MHD stage one plus. Anyone know why the inside of the car is vibrating like this?

Probably the downpipe touching the subframe. I know you said you already checked clearance but that's the only thing that would cause additional vibration. Things can shift around during installation, It's happened to me a couple of times where the clearance was perfect during install and during the last steps of tightening the exhaust bolts and bracket the pipes have shifted.

[mweisdorfer]

Originally Posted by thompsac25

Hey everyone,

Tried to search but didnt find anyone with similar symptoms. I just finished installing VRSF catless downpipes and an Active Autowerke Signature exhaust. Under no load, the car sounds awesome. Under load, around 2500 RPMs and at maybe 50% throttle positioning, I notice A LOT of raspiness or rattling from directly under me (where the DPs are). Is this normal? Do I have a leak or am I rattling against something?

Also currently running Cobb AP Stage 1 Aggressive Map if that makes any difference.

Thanks for any help and/or advice!

If you had a leak, you'd get a code.

To get rid of rasp, you need Vibrant 1792 resonators

[thompsac25]

Originally Posted by mweisdorfer

If you had a leak, you'd get a code.

To get rid of rasp, you need Vibrant 1792 resonators

This thread is from 2014 I've owned 3 other BMWs since this.
But I did add Vibrant resonators to this particular exhaust setup. Was still too loud for my taste and ended up selling it.