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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 04-07-2010, 05:53 PM   #1
I_Miss_My_///M
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Exhaust Mod Idea

First off, this is a "muffler delete-related question," but I promise it's not what's been asked 10,000 times. I haven't done the delete mod yet, but have watched as many videos and listened to as many sound clips as I can find. While I do like the muffler delete mod for quite a few reasons, the sound is still a bit too harsh for me. That said, I still have the stock rear muffler and 2nd resonator from my 325i and have been wondering about incorporating either or both of them in my soon-to-be-modded exhaust setup. These are my questions:

1. Has anyone installed a stock resonator in place of the stock rear muffler?

2. If I gutted the stock 325 muffler, it would end up being a large resonator, correct?
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Old 04-13-2010, 04:06 PM   #2
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I was curious if you kept both resonators and added a 3rd when you did a muffler delete what it would sound like myself. Has anyone tried this, I can't find anything under search for this setup.
The gutting the muffler sounds like it would be an echo chamber.... whether good or bad i don't know!

Anyone done or heard someones car that has tried either of these set-ups?
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Old 04-13-2010, 04:12 PM   #3
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A guy tried chopping up the insides of his muffler... piss p00rness resulted.. don't do that.

If you want to do a more subtle muffler delete, remove muffler, put glasspacks in it's place, and weld tips on the end
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Old 04-13-2010, 08:40 PM   #4
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any good places to get tips?
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Old 04-13-2010, 08:46 PM   #5
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Originally Posted by biggs325 View Post
any good places to get tips?
ebay works well. internet in general
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Old 04-13-2010, 08:50 PM   #6
2000_328CI
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Quote:
Originally Posted by biggs325 View Post
any good places to get tips?
dtm-spec.net has nice burnt titanium tips.

also, make sure you come to the Ocean City, MD meet ( http://forum.e46fanatics.com/showthr...ght=ocean+city ) or the one at the University of Maryland ( http://forum.e46fanatics.com/showthr...&highlight=umd )
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Old 04-13-2010, 08:55 PM   #7
I_Miss_My_///M
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Quote:
Originally Posted by 330SeaAye View Post
I was curious if you kept both resonators and added a 3rd when you did a muffler delete what it would sound like myself. Has anyone tried this, I can't find anything under search for this setup.
The gutting the muffler sounds like it would be an echo chamber.... whether good or bad i don't know!

Anyone done or heard someones car that has tried either of these set-ups?
Exactly! I'm thinking that by keeping both resonators and then adding another stock 2nd resonator as a 3rd resonator it should cut the sound down a bit, but not enough to lose the aggressive nature of the muffler delete. I'm basing this assumption on my experience with my ex-325i, where I first swapped the muffler out for a ZHP. When I realized it wasn't quite enough of a change I removed the 2nd resonator and loved it.

Quote:
Originally Posted by 2000_328CI View Post
A guy tried chopping up the insides of his muffler... piss p00rness resulted.. don't do that.

If you want to do a more subtle muffler delete, remove muffler, put glasspacks in it's place, and weld tips on the end
Do you have any specifics on what that guy did exactly? Did he try to modify the internals, or gut them?

And I've considered the whole glasspacks thing, but it's hard to get a good idea of what it sounds like in real life just by listening to youtube videos. Some sound great, and some sound TERRIBLE! Hell, some stock exhausts even sound sweet on youtube!!!
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