[EX0PIL0T]

Originally Posted by oVeRdOsE.

My muffler got indeed a remote to : open/close/auto. the control vacuum box is in the back of the car.

Im planning to tear down the remote and integrate it in the oem dummy button in the car console.

How did you wire the vacuum box? Have any photos? I think I'm going a similar route. I'm putting in the M3 center console trim piece and wiring the buttons to things I've added.

[oVeRdOsE.]

Originally Posted by EX0PIL0T

How did you wire the vacuum box? Have any photos? I think I'm going a similar route. I'm putting in the M3 center console trim piece and wiring the buttons to things I've added.

right now the vacuum box is connected with the 12V socket that came with.

I dont believe there a viable 12v acc source in the trunk, Ill need to source it in front and use a relay .

I need more searching, I have a E91, so I might have more option that E90.

My exhaust is pretty simple ; hfc, vibrant resonator and valved muffler. 3''

I didnt want to do a dual exit for 2 reason : I wanted to keep the cargo floor space, and single exit sounds better on a n54

[wrevilo]

Love the single exit. If I had unlimited money, I would have done a single exit for my E92. I still don't have my car so I don't have any feedback to give on the Gravity exhaust. I will update!

[oVeRdOsE.]

Originally Posted by EX0PIL0T

How did you wire the vacuum box? Have any photos? I think I'm going a similar route. I'm putting in the M3 center console trim piece and wiring the buttons to things I've added.

worked on it yesterday.
so tap a fuse box in parallel on the 12V socket in the back. Turns out this outlet is on ACC, so only on with key.

Tucked the vacuum box in the void. It's squeezed between the trunk panel and the acoustic foam on the fender, so wont move.

once again , this is a E91, so way easier.

[MyPocketsHurt]

Originally Posted by TheGoodTheBadTheUgly

I had a VRSF catless downpipe and I did the Performance Exhaust mod on my stock exhaust but I made sure to put back the fiberglass insulation to supress unwanted reverberations.

Never had it drone, sounded smooth and loud enough, not to a point to be annoying and obnoxious on long drives, but still plenty of noise.

https://www.youtube.com/watch?v=yUa1sKf950U

Would do this but don’t have stock mufflers so not an option for me