Straight Pipes On An E36 - BMW Forum - BimmerWerkz.com
3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

 
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#1 (permalink) Old 04-15-2005, 01:34 AM
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Hey guys, a couple of things...
Just out of curiosity, I tried to take off my stock exhaust today-it seemed relatively simple-but theres a mechanism attached to the right exhaust tip that manipulates a valve that opens and shuts depending on how open the throttle is (I'm sure most of you know what I'm talking about), and I couldn't seperate it from the muffler. I couldn't see a way to remove it from the rear bumper without taking it off permanently.
Has anyone here removed their exhaust before and driven on just straight pipes? What's it sound like? Also, what does that little valve do....save gas?
Thanks for any input,
SGhavi
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#2 (permalink) Old 04-15-2005, 08:18 AM
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The little valve increases back pressure when your in the lower RPM's, so you get more power. Once at a certain RPM the valve opens to allow more exhaust to flow out.. As far a straight pipes I would like to know myself.

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#3 (permalink) Old 04-15-2005, 12:20 PM
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Quote:
Originally posted by 93 325i@Apr 15 2005, 07:18 AM
The little valve increases back pressure when your in the lower RPM's, so you get more power. Once at a certain RPM the valve opens to allow more exhaust to flow out.. As far a straight pipes I would like to know myself.
[snapback]332772[/snapback]

Im thinking of doing this for a week or so, just because it sounds cool

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