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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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      09-11-2007, 10:37 PM   #133
jjhan85
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so you pretty much had a pipe (resonator) IN ANOTHER pipe (old pipe)? or the other way around...i guess.....
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      09-11-2007, 11:10 PM   #134
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Quote:
Originally Posted by HappyG View Post
Global warming is already a major problem w/o people running no mufflers. LoL.
You do know the muffler has no affect on emissions right?
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      09-12-2007, 07:59 PM   #135
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Quote:
Originally Posted by jjhan85 View Post
so you pretty much had a pipe (resonator) IN ANOTHER pipe (old pipe)? or the other way around...i guess.....
pipe inside resonator
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      09-24-2007, 10:29 PM   #136
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ok, so i FINALLY put up the drive-by clip.
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      09-24-2007, 11:05 PM   #137
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and a driving in the car clip
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      09-24-2007, 11:14 PM   #138
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that's nice Scheer, but I think my car will be too loud for my taste if I do that mod with my intake

this is with the intake and the valve tee mod


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      09-25-2007, 12:05 AM   #139
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Holy shit, okay I think I might do Muff delete! Forget spending a few thousand dollars on a peice of crap metal from eissenman when I can get the same sound! No muff = lighter rear end! WOOHHH!
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      09-25-2007, 10:18 AM   #140
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Has anyone done this mod with a gruppe m rep intake or simota intake installed? How does it sound? Too loud?
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      09-25-2007, 11:44 AM   #141
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Has anyone done this mod with a gruppe m rep intake or simota intake installed? How does it sound? Too loud?
+ 1 ?
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      09-25-2007, 11:55 AM   #142
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I have an AFE intake with the resonator and muffler delete. I think its a good volume...nothing too outrageous or obnoxious
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      09-25-2007, 12:08 PM   #143
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i have no resonators with an ikon muffler. Resonator delete ftw. HUGE DIFF in noise. i might take out my muffler as well
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      09-25-2007, 03:09 PM   #144
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well D-rock has the FUJITA intake and resonator delete, ask him...
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      09-25-2007, 04:00 PM   #145
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i have no resonators with an ikon muffler. Resonator delete ftw. HUGE DIFF in noise. i might take out my muffler as well
i also have the ikon with resonator delete. you get the raspy sound after a throttle when parked?
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      09-25-2007, 06:59 PM   #146
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i also have the ikon with resonator delete. you get the raspy sound after a throttle when parked?
after a throttle???
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      09-25-2007, 11:46 PM   #147
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No Muffler For The Win.
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      09-25-2007, 11:57 PM   #148
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so where can i do the resonator + muffler delete? just any old exhaust shop?
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      09-26-2007, 12:06 AM   #149
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i did it at midas...they did a pretty good job...but yea, any muffler shop will do it...
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      09-26-2007, 12:11 AM   #150
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Quote:
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i did it at midas...they did a pretty good job...but yea, any muffler shop will do it...
Did midas have the pipe you needed? CAn you take some nice pics of your tips? Your the guy who has the two BIG Chrome tips right?
I'm thinking of bring my ride to midas to do too.
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      09-26-2007, 01:17 AM   #151
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muffler and a resonator delete is a bit too aggressive in my opinion...just a muffler delete would suffice for a bmw (judging from the sound clips)....but..once you get your desired "loudness"...mandrel bent pipes are going to give a smoother consistent sound vs. standard crimp bent....but mandrel pipe bending is more money and most likely a special order....(if you are a perfectionist)....you want the airflow to be smooth as possible without any change in diameter throughout for a sound clean as possible....now...the final..the tip...many think tips are just for looks....but tips become key is the final sound the exhaust is going to make...."drone" is caused by bass...larger the tip...more "drone"...smaller will result in less to no "drone"...think about a tuba vs. a tumpet....straight cut vs. rolled....3 inch tip vs. 2 inch tip...it makes a BIG difference in the final sound...resonated tip vs. standard tip....anyways...i've played around countless hours trying out different tips when building exhausts (8 years ago in college days)....you may think paying $500 or $1,000 is steep for a manufactured exhaust...but those people spent countless hours testing out different bends...variety of mufflers and tips to get a marketable "sound" (exhaust system) on the shelves of shops...if you want to do it yourself...do it if you have the time....there are 100's of muffler out there to try....1,000's of tips...infinite number of ways to bend and shape pipes...mix and match to get the sound you want....
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      09-26-2007, 01:33 AM   #152
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never heard of a check engine light for exhaust modification...usually that will only occur if you are choking the flow..(too many crimp bends or restrictions)....or if you mess around too much before the sensor (but ususally sensors are located before the catalytic converter)...so even a high flow racing catalytic converter won't send errors if the sensor is still reading the correct emissions that go into the catalytic correctly...even headers (modifications before the cat) won't typically send any errors unless there is a leak (using the older paper thin metal piece that goes between when bolting on the new parts)...
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      09-26-2007, 08:21 PM   #153
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Quote:
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after a throttle???
i mean when the car is parked and you blip the throttle. after the rev is getting low there is a short sssss sound


no one knows what i am talking about?
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      09-26-2007, 08:57 PM   #154
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Quote:
Originally Posted by wuufer001 View Post
i mean when the car is parked and you blip the throttle. after the rev is getting low there is a short sssss sound


no one knows what i am talking about?
no it just pops cause of left over gas igniting in the exhaust pipe.
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