Vacum Control, Exhaust flap

kfares · 12-20-2010, 10:07 AM

Can any body help me out how this system works (Vacum control,exhaust flap)

**335i** · 12-20-2010, 10:47 AM

u want remove it? after u install aftermarket exhaust it becomes uselles....

twistedm3 · 12-20-2010, 04:07 PM

If you have an automatic transmission you may find under certain driving conditions this modification works so well it allows the engine to spool down below the ideal torque curve and then you have to wait until the engine spools back into the range. Great modification for manuals but for automatics .. try it.

12-20-2010, 10:07 AM	#1
kfares Private First Class 29 Rep 100 Posts Drives: BMW E90 Join Date: Apr 2008 Location: Cairo iTrader: (0)	Vacum Control, Exhaust flap Can any body help me out how this system works (Vacum control,exhaust flap) Attached Images
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12-20-2010, 10:47 AM	#2
335i Colonel 184 Rep 2,320 Posts Drives: TOYOTA & 2008 E92 335i 6MT Join Date: Jul 2007 Location: Swiss iTrader: (4) Garage List 2008 335i [9.00]	u want remove it? after u install aftermarket exhaust it becomes uselles.... __________________ E92 335i Black Saphire 6MT PROcede V5, BMS DCI, Big Tom IC, AR CL-DP's 3", AR Design OC, Forge DV's, OEM M3 side skirts, BMW Performance Wheels 19 inch 269 Black Gloss+Continental ContiSportContact 5P (400hp and 550nm) https://www.youtube.com/user/aistis7..._as=subscriber
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12-20-2010, 04:07 PM	#3
twistedm3 Private 5 Rep 50 Posts Drives: E90 330i Join Date: Jun 2010 Location: San Diego iTrader: (0)	If you have an automatic transmission you may find under certain driving conditions this modification works so well it allows the engine to spool down below the ideal torque curve and then you have to wait until the engine spools back into the range. Great modification for manuals but for automatics .. try it.
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