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BMW 3-Series (E90 E92) Forum
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What's the difference? Extra hose
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| 10-23-2020, 08:44 AM | #1 |
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Lieutenant Colonel
 
213
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What's the difference? Extra hose
What's the purpose of the T in the 330i? It doesn't exist in the 325i
Red car 330i Black 325i
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Koni special active red, eibach pro-kit springs, Remus exhaust, stage 3 intake manifold,Stage 2 AA tune, BMW Short shift kit. Silicon intake pipe. M3 control arms front, M3 rear. ECS trailing arm with whiteline bushings. Purple powerflex subframe bushings. Yellow power flex upper shock mounts. Single mass flywheel OE weight.
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| 10-23-2020, 02:39 PM | #4 |
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Cometh
1090
Rep 1,305
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Drives: Boy's Soul
Join Date: Jul 2016
Location: Boy's Hole
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The vacuum at the throttle body controls the valve in the exhaust tips for more noise
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| 10-23-2020, 02:40 PM | #5 |
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Major
 
858
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Drives: 09 E90 335i M-Sport 6MT RWD
Join Date: Nov 2017
Location: Ontario, Canada
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IIRC the vacuum from the engine closes the valve and the solenoid blocks/releases it when it wants to open
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