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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 07-20-2010, 12:06 PM   #1
sgplayer69
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How to get exhaust "burble"

I recently rode around in my friend's 335i, and I have a newfound appreciation for that awesome burble sound when decelerating. Is there anything I can do to or get for my ZHP exhaust to give it that burble sound when decelerating, without getting a whole new exhaust system?

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Old 07-20-2010, 12:21 PM   #2
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I'm not 100% sure but I think this sound is just drowned out by the muffler or resonator. You can get this bit chopped out of your system quite cheap and you should get some 'burble'. I'm sure some one more knowledgeable on exhausts will confirm this or shoot me down as a noob
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Old 07-20-2010, 12:36 PM   #3
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ah ok but why does a car like the 335i have that burble stock? it still has a muffler and resonators...I've also heard that new tips will help that. Does anyone have a recommendation of tips for a ZHP exhaust?
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Old 07-20-2010, 01:36 PM   #4
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cut your muffler off
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Old 07-20-2010, 02:27 PM   #5
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ok thanks all, and one more: Idk how to describe it, but as the RPMs drop lower there's sort of a subtle popping or crackling noise in the exhaust that I noticed. Any way to get that?
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Old 07-20-2010, 02:33 PM   #6
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for example:

at 0:17 and 0:25. What is that exactly?
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Old 07-20-2010, 02:35 PM   #7
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i got that after chopping off my muffler.
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Old 07-20-2010, 02:36 PM   #8
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I think I hear what you are talking about. It is just the way the mufflers are set up. I think with an aftermarket setup you will hear what. Search around the forum for aftermarket exhaust clips or on Youtube for the E46.
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Old 07-20-2010, 02:42 PM   #9
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cut your muffler off
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Originally Posted by Devious1 View Post
i got that after chopping off my muffler.
+1 .........

I got a muffler delete also. Love the way it sounds. Just perfect. Not too loud, not too quite & definitly not civic like. Has the perfect deep growl/tone. Just dont put headers on & you'll eb fine
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Old 07-20-2010, 02:44 PM   #10
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+1 .........

I got a muffler delete also. Love the way it sounds. Just perfect. Not too loud, not too quite & definitly not civic like. Has the perfect deep growl/tone. Just dont put headers on & you'll eb fine
Thanks. What's the problem with putting headers on?
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Old 07-20-2010, 02:49 PM   #11
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Thanks. What's the problem with putting headers on?
it will get much louder
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Old 07-20-2010, 02:53 PM   #12
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oh ok yeah that makes sense. I don't need louder I just need a nice deeper tone with some burble and pop haha
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Old 08-01-2010, 12:48 AM   #13
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delete the muffler + 2nd resonator... I love that sound too... doing only the muffler will give a deeper tone but for that burble sound you want, 2nd resonator too... gl
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Old 08-01-2010, 11:57 PM   #14
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delete the muffler + 2nd resonator... I love that sound too... doing only the muffler will give a deeper tone but for that burble sound you want, 2nd resonator too... gl
How about just doing the second resonator? Don't want to wake the neighbours or attract unnecessary attention (read POLICE). Was thinking to just cut out resonator and leave muffler intact.....

Thoughts?
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Old 08-02-2010, 08:57 PM   #15
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How about just doing the second resonator? Don't want to wake the neighbours or attract unnecessary attention (read POLICE). Was thinking to just cut out resonator and leave muffler intact.....

Thoughts?
You can do it bit by bit to see if it's to your liking... I did the muffler delete first and about 6 months later did the 2nd resonator... the sound with both deleted is loud but not wake up the dead loud... its just enough that it's a head turner and I get alot of compliments on mine... oh yeah police is not a worry in my area...
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Old 08-02-2010, 09:03 PM   #16
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You can do it bit by bit to see if it's to your liking... I did the muffler delete first and about 6 months later did the 2nd resonator... the sound with both deleted is loud but not wake up the dead loud... its just enough that it's a head turner and I get alot of compliments on mine... oh yeah police is not a worry in my area...
can you get a video of yours? I have my muffler cut off and now from reading these comments, im thinking on doing the 2nd res. I love my burble, its freggin awesome
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Old 11-20-2010, 02:54 AM   #17
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cut front muffler and resonator out.

leave the rear muffler
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Old 11-21-2010, 01:20 AM   #18
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2nd res and muffler delete.
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Old 11-21-2010, 01:22 AM   #19
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ya 2nd gear when revs drop below 2.5k they burb;e
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Old 10-30-2012, 01:39 PM   #20
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How much would a muffler delete and removal of the second resonator cost?
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