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2Addicts | BMW 2-Series forum Technical Topics N55 (M235i) Engine, Transmission, Exhaust, Tuning M235i with m performance muffler + straight pipes?

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      11-14-2014, 01:32 PM   #1
jschulman00
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M235i with m performance muffler + straight pipes?

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Hi everyone,

I've searched for this but haven't come along with anyone with this particular exhaust configuration. Has anyone heard or have a video of a M235i with MPE (or other axleback muffler) and then everything straight piped up until the downpipe (so resonator and sec cat delete). I know the popular configuration is down pipe plus exhaust, which sounds fantastic, but I don't plan on tuning so downpipe is out of the question. Thanks!
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      11-14-2014, 02:02 PM   #2
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Quote:
Originally Posted by jschulman00 View Post
Hi everyone,

I've searched for this but haven't come along with anyone with this particular exhaust configuration. Has anyone heard or have a video of a M235i with MPE (or other axleback muffler) and then everything straight piped up until the downpipe (so resonator and sec cat delete). I know the popular configuration is down pipe plus exhaust, which sounds fantastic, but I don't plan on tuning so downpipe is out of the question. Thanks!
There is no second cat. I don't even think there is another resonator upstream of the muffler but I might be wrong on that.
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      11-14-2014, 02:05 PM   #3
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There is a small resonator from the pictures I've seen.
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      11-14-2014, 04:55 PM   #4
jschulman00
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Quote:
Originally Posted by alz0rz View Post
There is no second cat. I don't even think there is another resonator upstream of the muffler but I might be wrong on that.
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Originally Posted by MG 228i View Post
There is a small resonator from the pictures I've seen.
Ahh ok. With that being said, would there be much sound to gain with removing that resonator (if it is relatively small)?
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      11-17-2014, 10:22 AM   #5
Waldmanboy235
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i did a resonator delete to stock exhaust but i do have a cattless down pipe. I did the resonator delete after i had been carless for a while and i did actually notice a difference even though it is a pretty small resonator
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      11-18-2014, 12:36 PM   #6
YOLO89
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Quote:
Originally Posted by Waldmanboy235
i did a resonator delete to stock exhaust but i do have a cattless down pipe. I did the resonator delete after i had been carless for a while and i did actually notice a difference even though it is a pretty small resonator
Did you have any sound clips of how your car sounds?
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      11-20-2014, 02:53 AM   #7
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https://www.youtube.com/watch%3Fv%3D...tGO2Ohn_aB1cpw

YT link for M135i [same n55 engine and running gear as M235i] with ER decat DP and non resonated bastuck catback system. Enjoy
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      11-20-2014, 02:53 AM   #8
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https://www.youtube.com/watch%3Fv%3D...tGO2Ohn_aB1cpw

YT link for M135i [same n55 engine and running gear as M235i] with ER decat DP and non resonated bastuck catback system. Enjoy
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