Muffler delete high pitched whistling

i own an e90 · 05-05-2012, 12:59 AM

Hi , jus did my muffler delete with a brand new 3.5" muffler tip...after gunning it and passing 4000rpm i get high pitch whistling sound...anybody ever get that?..i have a 325xi 2006..also, .fo some reason i dont get the gargle popping sound like i do when i had my bmw pe exhaust...i know people have said their muffler delete , they get that gargling popping sound..i still have my resonator and it looks like they use the stock piping and put a new pipe only at the end..?.it has alot of bass to it no gargling compare to the videos i have seen..iono why..any inputs

is it me or this welder didn't put the same size piping ??? lol is this correct..IM A NEWB ON MUFFLER DELETES...how can i get more growl for my muffler delete??? im using a 3.5" muffler tip...is this why i dont get much growl to it ? cuz the muffler tip is too big..

E46toE90 · 05-05-2012, 05:33 AM

Quote:

Originally Posted by i own an e90

Hi , jus did my muffler delete with a brand new 3.5" muffler tip...after gunning it and passing 4000rpm i get high pitch whistling sound...anybody ever get that?..i have a 325xi 2006..also, .fo some reason i dont get the gargle popping sound like i do when i had my bmw pe exhaust...i know people have said their muffler delete , they get that gargling popping sound..i still have my resonator and it looks like they use the stock piping and put a new pipe only at the end..?.it has alot of bass to it no gargling compare to the videos i have seen..iono why..any inputs

Maybe the tips are causing the whistle, mine doesn't whistle , And my 330 with md gets the pop if I let off the gas and slightly touch it again I get big pops

markeh · 05-05-2012, 02:20 PM

I'd recommend a res delete, provides a louder deeper tone

RevC · 05-05-2012, 02:30 PM

hey bud, remember that one time i said don't ever do a muffler delete?

:
i know its always more prounounced on the n54, and now you essentialy have free flowing straight pipes right? but id say no popping is sign of a healthy exhaust and motor man, backpressure comes into play with the n54, i have no idea about the n52 sorry man but hey..you dont want the thing spitting out flames.

NSFW 335i · 05-05-2012, 03:00 PM

Quote:

Originally Posted by i own an e90

Hi , jus did my muffler delete with a brand new 3.5" muffler tip...after gunning it and passing 4000rpm i get high pitch whistling sound...anybody ever get that?..i have a 325xi 2006..also, .fo some reason i dont get the gargle popping sound like i do when i had my bmw pe exhaust...i know people have said their muffler delete , they get that gargling popping sound..i still have my resonator and it looks like they use the stock piping and put a new pipe only at the end..?.it has alot of bass to it no gargling compare to the videos i have seen..iono why..any inputs

Welding might have not been performed correctly. Put car on a lift, Start your car, have someone rev it and feel around where it was welded, feel any air leaking. If it is leaking, take it back and have them do it correctly.

I have 335i catless, 1 res removed and no muffler, no whistle at all.

RevC · 05-05-2012, 03:05 PM

im planning on just using folgers cans next

i own an e90 · 05-05-2012, 03:22 PM

hahaha @ rev .....

328i · 05-05-2012, 03:24 PM

i own an e90 · 05-05-2012, 04:40 PM

Quote:

Originally Posted by 328i

HAHAHHAHAHAH

...na it only sound when i gun it and pass 4000rpm...good video though

idrift4wd · 05-05-2012, 08:01 PM

Quote:

Originally Posted by RevC

hey bud, remember that one time i said don't ever do a muffler delete?

:
i know its always more prounounced on the n54, and now you essentialy have free flowing straight pipes right? but id say no popping is sign of a healthy exhaust and motor man, backpressure comes into play with the n54, i have no idea about the n52 sorry man but hey..you dont want the thing spitting out flames.

???? i hope you do know that there is backfires with stock exhaust... muffler delete just makes it louder. There are "race" exhausts that dont even have mufflers, but since its a brand name and cost alot, no one says anything.

only downside of a muffler delete is drone imo.

bjkim0426 · 06-07-2016, 05:03 AM

so did anyone know how to fix the whistling noise after muffler delete?

_335xi · 06-07-2016, 12:56 PM

Quote:

Originally Posted by bjkim0426

so did anyone know how to fix the whistling noise after muffler delete?

Yes. Put the muffler back on

05-05-2012, 12:59 AM	#1
i own an e90 chief general 72 Rep 1,074 Posts Drives: e90 white on black manual 6spd Join Date: Aug 2009 Location: new jersey iTrader: (1)	Muffler delete high pitched whistling Hi , jus did my muffler delete with a brand new 3.5" muffler tip...after gunning it and passing 4000rpm i get high pitch whistling sound...anybody ever get that?..i have a 325xi 2006..also, .fo some reason i dont get the gargle popping sound like i do when i had my bmw pe exhaust...i know people have said their muffler delete , they get that gargling popping sound..i still have my resonator and it looks like they use the stock piping and put a new pipe only at the end..?.it has alot of bass to it no gargling compare to the videos i have seen..iono why..any inputs is it me or this welder didn't put the same size piping ??? lol is this correct..IM A NEWB ON MUFFLER DELETES...how can i get more growl for my muffler delete??? im using a 3.5" muffler tip...is this why i dont get much growl to it ? cuz the muffler tip is too big.. __________________ CAR: 2006 AW e90 / black int. / 6speed mt MODS SO FAR: ACS kit / ACS SPOILER / bmw perf exhaust / tints / 6k HID / 3k HID FOGS AKMotorwerk.com : great installers..check 'em out Last edited by i own an e90; 05-05-2012 at 04:41 PM..
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05-05-2012, 02:20 PM	#3
markeh Second Lieutenant 12 Rep 219 Posts Drives: 2013 CB 650xi GC Join Date: Sep 2010 Location: Fort Lee, NJ iTrader: (0)	I'd recommend a res delete, provides a louder deeper tone
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05-05-2012, 02:30 PM	#4
RevC Lieutenant General 178 Rep 11,768 Posts Drives: a couple fast toys Join Date: Jun 2009 Location: Voorhees+cherry hill,NJ iTrader: (26)	hey bud, remember that one time i said don't ever do a muffler delete? : i know its always more prounounced on the n54, and now you essentialy have free flowing straight pipes right? but id say no popping is sign of a healthy exhaust and motor man, backpressure comes into play with the n54, i have no idea about the n52 sorry man but hey..you dont want the thing spitting out flames. __________________ -Rev SGM e92 335xi\|Helix\|AFE\|AWE\|PROCEDE\|SYNAPSE\|ER\|OSS\|BMW PERFORMANCE\|P3\|always growing..
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05-05-2012, 03:05 PM	#6
RevC Lieutenant General 178 Rep 11,768 Posts Drives: a couple fast toys Join Date: Jun 2009 Location: Voorhees+cherry hill,NJ iTrader: (26)	im planning on just using folgers cans next __________________ -Rev SGM e92 335xi\|Helix\|AFE\|AWE\|PROCEDE\|SYNAPSE\|ER\|OSS\|BMW PERFORMANCE\|P3\|always growing..
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05-05-2012, 03:22 PM	#7
i own an e90 chief general 72 Rep 1,074 Posts Drives: e90 white on black manual 6spd Join Date: Aug 2009 Location: new jersey iTrader: (1)	hahaha @ rev ..... __________________ CAR: 2006 AW e90 / black int. / 6speed mt MODS SO FAR: ACS kit / ACS SPOILER / bmw perf exhaust / tints / 6k HID / 3k HID FOGS AKMotorwerk.com : great installers..check 'em out
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05-05-2012, 03:24 PM	#8
328i Colonel 148 Rep 2,932 Posts Drives: E46 ///M Join Date: Jan 2007 Location: central NJ iTrader: (15)	__________________
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06-07-2016, 05:03 AM	#11
bjkim0426 Second Lieutenant 17 Rep 268 Posts Drives: E60 M5 Join Date: May 2013 Location: seattle iTrader: (1)	so did anyone know how to fix the whistling noise after muffler delete?
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