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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > E90 325 Muffler Delete !!!!



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      09-08-2007, 04:03 AM   #111
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congrats
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      09-08-2007, 04:42 AM   #112
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alright guys...here a video of [ Resonator + Muffler Delete] I paid about 160 bucks for it and i am personally satisfied with it (...to each his own =) ...) . SOOO...It was late at night, and i was using a flashlight and i couldn't sleeeep...sooo...okay..

the quality of this video is alllright...i'll try to post a better one, but heres one for now, just to give you an idea of what it sounds like... enjoy

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      09-08-2007, 06:53 AM   #113
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Quote:
Originally Posted by jjhan85 View Post
alright guys...here a video of [ Resonator + Muffler Delete] I paid about 160 bucks for it and i am personally satisfied with it (...to each his own =) ...) . SOOO...It was late at night, and i was using a flashlight and i couldn't sleeeep...sooo...okay..

the quality of this video is alllright...i'll try to post a better one, but heres one for now, just to give you an idea of what it sounds like... enjoy

thats more like it!

now i gotta get the balls to do this.

its reversable if need be?
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      09-08-2007, 09:49 AM   #114
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Wow I am really really impressed... I dun think I hear much of drone in the exhaust. Great job...!!!!
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      09-08-2007, 11:21 AM   #115
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totally reversible yes
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      09-08-2007, 04:41 PM   #116
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NO DRONE!!!
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      09-08-2007, 05:38 PM   #117
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So I take it no one is losing HP by doing this on the 328i? I have been looking into making my car louder but dont want to spend $1,200 on a leased car... My main concern is losing HP or torque. But I figure at most losing 3-4 hp isnt bad if you lose 30-40lbs that will out weight the hp loss if any.
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      09-08-2007, 07:17 PM   #118
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if you want it loud take out the resonator. I think it makes it loud enough and that its not obnoxious
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      09-09-2007, 07:53 PM   #119
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Quote:
Originally Posted by AndrewAZ View Post
So I take it no one is losing HP by doing this on the 328i? I have been looking into making my car louder but dont want to spend $1,200 on a leased car... My main concern is losing HP or torque. But I figure at most losing 3-4 hp isnt bad if you lose 30-40lbs that will out weight the hp loss if any.
if anything i gained HP and Tourque on the butt dyno!
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      09-09-2007, 08:35 PM   #120
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oh yes i feel a boost. i know that i gained HP and Tourque.
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      09-09-2007, 08:51 PM   #121
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The vids sound just like it does in person. I got mine a while back and it sounds nice.
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      09-09-2007, 09:35 PM   #122
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The vids sound just like it does in person. I got mine a while back and it sounds nice.
did you take out just the muffler or the resonator too?
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      09-09-2007, 11:38 PM   #123
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did you take out just the muffler or the resonator too?
Just muffler. I have had thoughts about the resonator but they say it will be to loud.
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      09-10-2007, 02:34 PM   #124
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Quote:
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Just muffler. I have had thoughts about the resonator but they say it will be to loud.
i tried it...and oh it was!

by the way derek, i saw u driving around cocoplum circle saturday night
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      09-10-2007, 05:31 PM   #125
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NEW SOUND CLIP!!!

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      09-10-2007, 06:13 PM   #126
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i tried it...and oh it was!

by the way derek, i saw u driving around cocoplum circle saturday night
O yeah you should have called me and said whats up. What did you do sat ?
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      09-10-2007, 10:02 PM   #127
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O yeah you should have called me and said whats up. What did you do sat ?
i did but u had ur fone off. i went to some party on the key
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      09-10-2007, 11:25 PM   #128
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Quote:
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oh yes i feel a boost. i know that i gained HP and Tourque.
you actually gain hp because all that backpressure is released, but you lose torque.
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      09-11-2007, 02:11 PM   #129
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you actually gain hp because all that backpressure is released, but you lose torque.
i got both i did a little mod to the resonator so that i kept some backpressure
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      09-11-2007, 09:40 PM   #130
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i got both i did a little mod to the resonator so that i kept some backpressure
ooooh what did you do?
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      09-11-2007, 09:59 PM   #131
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well since i had the resonator put back in, i had them leave on some of the old pipe so that it protruded into the resonator (on the side leading to the exhaust). this old pipe was smaller than the opening on the resonator, so it goes inside and protrudes about 2 inches into the resonator. looks like this:

[-------------]
===...........=====-to engine
[__________]

(ignore the . it is supposed to resemble empty space
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      09-11-2007, 10:01 PM   #132
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is that understandable? or not rly?
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