08 550i sport..Remove resonators or RPI exhaust?
#12
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Maybe I am misunderstanding your post, but it wasn't intended to be funny. Is there some harm in asking? And not quads...just duals on the drivers side.
#13
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My Ride: '06 550i
'84 Nissan S12 Turbo
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This is a turbo wastegate actuator...but the muffler actuator looks similar to this...
![](http://ecx.images-amazon.com/images/I/61vzTqgmLDL._SS500_.jpg)
Also, you might want to make sure that the vacuum line that was connected to your actuator has been plugged when the RPI exhaust went on. If it's not plugged then you'll have a vacuum leak.
#14
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My Ride: SOLD...Jet Black 2008 550i M Sport with SAT, black interior. RPI exhaust and air scoop, 35% huper optik tint all around, CF roundels, flat black kidneys, Springfield Armory XD-40 jet black in glove box, charcoal filter removed.
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I'd say go with the RPI exhaust - proven HP gains and awesome sound. Removing the resonators may not give the same performance gains that RPI does.
#15
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I don't have any pics.....the flapper is inside one of the muffler tips....the right one I believe. You should see a lever sticking out of the right side muffler tip that has a rod connected to it, that connects to a vacuum controlled actuator.
This is a turbo wastegate actuator...but the muffler actuator looks similar to this...
![](http://ecx.images-amazon.com/images/I/61vzTqgmLDL._SS500_.jpg)
Also, you might want to make sure that the vacuum line that was connected to your actuator has been plugged when the RPI exhaust went on. If it's not plugged then you'll have a vacuum leak.
This is a turbo wastegate actuator...but the muffler actuator looks similar to this...
![](http://ecx.images-amazon.com/images/I/61vzTqgmLDL._SS500_.jpg)
Also, you might want to make sure that the vacuum line that was connected to your actuator has been plugged when the RPI exhaust went on. If it's not plugged then you'll have a vacuum leak.
Thanks again!
#20
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My Ride: 2008 550i - Sport Package, Sport Transmission, Active Steering, Navigation, Comfort Access, 7 Logic Stereo
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Why do people video tape exhaust clips indoors?
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