08 550i sport..Remove resonators or RPI exhaust?
01-14-2011, 05:36 AM
#21
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Ive got a 545 and I removed the most rear resonators...the car sounded somewhat deeper but no cigar. Ive got friends with e500 benzs and those cars sound great with a res delete but I decided to add a BIlly boat to the equation and damn my car sounds perfect.
01-14-2011, 08:29 AM
#22
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No probs. Yeah, just take a peak under the car and you'll see the actuator on the muffler. To remove the arm from the lever takes a little effort. You'll see where it connects, but I found that the easiest thing was to just grind down the weld, which allowed the arm to pop right off of the lever. Then I just zip tied the lever to that bracket on the muffler body in the open position so it doesn't rattle. Once you pop the arm off of the lever the flapper inside the muffler port will just flap around and rattle if you don't tie it off in the open position. You'll see what I'm talking about once you take a look.
Didn't notice a huge difference in sound though. I want to take the plunge and go RPI, but am afraid I would lose the quiet comfort when I'm just crusing.
01-16-2011, 10:01 AM
#23
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do you have any videos by any chance?
01-16-2011, 04:29 PM
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My Ride: '06 550i
'84 Nissan S12 Turbo
For me, the easiest way to keep the flap open was to put a male - male end vacuum hose adaptor between the incoming vacuum line, and the line that goes to the muffler. I just bypassed the solenoid that opens/closes it. Cost me under a buck and a few minutes of time. Plus it's easily reversable.
The way I did mine is reverseable as well.....but I am interested in how yours works
01-16-2011, 09:23 PM
#27
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My Ride: 2008 550i - Sport Package, Sport Transmission, Active Steering, Navigation, Comfort Access, 7 Logic Stereo
01-17-2011, 08:07 AM
#28
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They way I have mine is that whenever the car is running, the flapper is held open.
At least thats how I thought it worked.
01-17-2011, 08:22 AM
#29
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My Ride: '06 550i
'84 Nissan S12 Turbo
What year is yours? Where is the solenoid located? As far as I can tell mine only has the actuator...no solenoid. I see the vac line, but it goes from the actuator straight up into the bumper, and I would assume goes to a vac source from the engine. I see no solenoid.
My assumption was that the actuator controls the flapper based on engine vacuum/ pressure
My assumption was that the actuator controls the flapper based on engine vacuum/ pressure
01-17-2011, 08:50 AM
#30
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What year is yours? Where is the solenoid located? As far as I can tell mine only has the actuator...no solenoid. I see the vac line, but it goes from the actuator straight up into the bumper, and I would assume goes to a vac source from the engine. I see no solenoid.
My assumption was that the actuator controls the flapper based on engine vacuum/ pressure
My assumption was that the actuator controls the flapper based on engine vacuum/ pressure