PLEASE HELP: How can I make my exhaust louder?

kengisdrive · 02-21-2015, 01:24 AM

I have a 328i (yes not much but whatever) and I have a BMW Performance muffler on it currently. It sounds great but I'm wondering how I can make it louder. Should I put in a different resonator and do a muffler delete? Or throw in some new piping? Any tips on this would be great. I've heard a lot of really good sounding 328s and they kind of opened my eyes and showed me the best that can be made from a smaller engine (thought i had a decent exhaust)

TheTallJS · 02-21-2015, 02:00 AM

sell it completely and get supersprint headers, straight piped all the way out the back.

pinoye90 · 02-21-2015, 02:10 AM

Take your exhaust off and drive around without it👍

PureE92 · 02-21-2015, 03:15 AM

AA Headers, Remove 2nd cats,resonator,muffler. There you go bud thats loud as fk.

ZhengHai · 02-21-2015, 01:24 PM

Leave your muffler intact since its BMW PE. Delete secondary cats

justpete · 02-21-2015, 02:41 PM

Headers and PE rocks. CA emissions won't like it but it's the balls.

Mike. · 02-21-2015, 03:24 PM

This is the pinnacle of a new topic that I've never seen before.

justpete · 02-21-2015, 04:22 PM

Quote:

Originally Posted by Mike.

This is the pinnacle of a new topic that I've never seen before.

I wuz gonna say roll the windows down but that's probably not what the op had in mind...

Mike. · 02-21-2015, 05:38 PM

Quote:

Originally Posted by justpete

I wuz gonna say roll the windows down but that's probably not what the op had in mind...

Pete every day I yearn for the cam results thread.. And a new sound bite in my inbox!!

To the op:

OP don't devalue your 328 by the first line.. We all have them in here..

delete your secondary cats

Go Into the thread with the exhaust clips and I have a video of mine on the last page. If you delete the secondaries yours will sound like that

justpete · 02-21-2015, 06:08 PM

Quote:

Originally Posted by Mike.

Pete every day I yearn for the cam results thread.. And a new sound bite in my inbox!!

Yeah, me too. At least the cams have shipped. Only thing left to ship now is the CF roof. And to talk with the engine builder. But we'll run dynos first and then more after the new exhaust system is in. Then maybe more sound clips unless they want to start all the work immediately, dunno.

rick100 · 02-21-2015, 09:18 PM

Quote:

Originally Posted by kengisdrive

I have a 328i (yes not much but whatever) and I have a BMW Performance muffler on it currently. It sounds great but I'm wondering how I can make it louder. Should I put in a different resonator and do a muffler delete? Or throw in some new piping? Any tips on this would be great. I've heard a lot of really good sounding 328s and they kind of opened my eyes and showed me the best that can be made from a smaller engine (thought i had a decent exhaust)

get a civic , put a big mufler and it will be loud

Otherwise get AA headers and gain power plus sound

kengisdrive · 02-22-2015, 01:23 AM

Quote:

Originally Posted by Mike.

Pete every day I yearn for the cam results thread.. And a new sound bite in my inbox!!

To the op:

OP don't devalue your 328 by the first line.. We all have them in here..

delete your secondary cats

Go Into the thread with the exhaust clips and I have a video of mine on the last page. If you delete the secondaries yours will sound like that

Thanks!! I'll look at it

kengisdrive · 02-22-2015, 01:27 AM

Thanks for the info. Sorta forgot everyone has a 328 here. I'll look into the headers and deleting the cats. Once I take them out I can just place in regular piping that matches the diameter, correct?

Mike. · 02-22-2015, 07:08 AM

Quote:

Originally Posted by kengisdrive

Thanks for the info. Sorta forgot everyone has a 328 here. I'll look into the headers and deleting the cats. Once I take them out I can just place in regular piping that matches the diameter, correct?

or you can get AFE mid pipes which are a helluva lot easier to work with

krahooligan · 02-23-2015, 12:56 PM

ya you bunch of non having twin turbo mother fuckers.
oh shit...I have a non having twin turbo car....NOOOOOOOOOO
Naturally Aspirated engines for the WIIIIN.

EndOfAnEra · 02-23-2015, 01:14 PM

I like my reliable bmw

BoogeyMan'sBMW · 02-23-2015, 02:32 PM

If you want to keep the muffler, the most significant thing you can do is probably headers. For just sound though (the performance gains are minimal), it is a pretty penny to oay.

Deleting secondary cats/resonators can help a bit but the loudest you can get is probably a muffler delete which sounds great on the n52's.

I had a dual muffler/res delete and my car sounded AWESOME. Backfires sounded like shotgun blasts. Cheap set up, sounds great, but you have to deal with the drone.

justpete · 02-23-2015, 02:37 PM

Quote:

Originally Posted by BoogeyMan'sBMW

If you want to keep the muffler, the most significant thing you can do is probably headers. For just sound though (the performance gains are minimal), it is a pretty penny to oay.

Actually the performance gains are significant, >20rwhp is more than a ten percent increase which is very noticeable. But yes it's expensive.

chris82 · 02-23-2015, 04:39 PM

Quote:

Originally Posted by krahooligan

ya you bunch of non having twin turbo mother fuckers.
oh shit...I have a non having twin turbo car....NOOOOOOOOOO
Naturally Aspirated engines for the WIIIIN.

You get the award for the most informative post of Febrururururururuary

PHXE90 · 02-23-2015, 04:56 PM

Quote:

Originally Posted by ZhengHai

Leave your muffler intact since its BMW PE. Delete secondary cats

This is your best option and can be done for next to nothing.

krahooligan · 02-23-2015, 05:04 PM

Quote:

Originally Posted by chris82

You get the award for the most informative post of Febrururururururuary

Pawlin · 02-23-2015, 08:16 PM

Delete secondary cats and resonator. Here's a thread on mine.

http://www.e90post.com/forums/showthread.php?t=1003848

If you want even more, do a muffler delete as well. I opted for a cutout so I could choose between loud or quiet depending on how much of a toolbag I'm feeling.

02-21-2015, 01:24 AM	#1
kengisdrive Enthusiast 1 Rep 9 Posts Drives: 2009 E90 BMW 328i Join Date: May 2014 Location: Orange County iTrader: (0) Garage List 2009 BMW 328i [0.00]	PLEASE HELP: How can I make my exhaust louder? I have a 328i (yes not much but whatever) and I have a BMW Performance muffler on it currently. It sounds great but I'm wondering how I can make it louder. Should I put in a different resonator and do a muffler delete? Or throw in some new piping? Any tips on this would be great. I've heard a lot of really good sounding 328s and they kind of opened my eyes and showed me the best that can be made from a smaller engine (thought i had a decent exhaust)
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02-21-2015, 02:00 AM	#2
TheTallJS Member 30 Rep 115 Posts Drives: Metallic Black 2006 325i Join Date: Sep 2009 Location: San Francisco iTrader: (0) Garage List 2006 BMW 325i [0.00]	sell it completely and get supersprint headers, straight piped all the way out the back. __________________ Fly the BMW.
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02-21-2015, 02:10 AM	#3
pinoye90 Banned 85 Rep 466 Posts Drives: 07-E90 Join Date: Dec 2011 Location: PHX iTrader: (0)	Take your exhaust off and drive around without it👍
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02-21-2015, 03:15 AM	#4
PureE92 First Lieutenant 93 Rep 322 Posts Drives: E92 Join Date: Sep 2012 Location: Texas iTrader: (0)	AA Headers, Remove 2nd cats,resonator,muffler. There you go bud thats loud as fk.
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02-21-2015, 01:24 PM	#5
ZhengHai Captain 245 Rep 883 Posts Drives: E90 Join Date: Sep 2010 Location: AV, California iTrader: (2)	Leave your muffler intact since its BMW PE. Delete secondary cats __________________
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02-21-2015, 02:41 PM	#6
justpete Brigadier General 1244 Rep 3,778 Posts Drives: '11 328i '19 M6 Join Date: Jan 2012 Location: DFW iTrader: (0) Garage List 2019 BMW M6 [10.00] 2011 BMW 328i [9.00]	Headers and PE rocks. CA emissions won't like it but it's the balls. __________________ 2011 E90 328i 6MT, BMW Aero, CF hood/boot, PI+CAI+RM+3IM+BPC, SS+CI528+ThermoTec+SS#1+2XBurns, AKG 75D eng/trans, Al/Delrin diff/RS, CM 850, UCP, CAE, AKG DSSR, DiffsOnline 3.91 30/90 LSD+BW cooler, C&R, Setrab, Accusump, AST 3-way+Swift, Aurora PR+BW spherical, Vorshlag CPs, M3 brace+UR bar, ARC-8 18x8.5, 255 R1R, RB/CSL rotors+cooling, 135i calipers, RS29, RT700, Safecraft, OMP HTE-R+804F+QD Superquadro, 6pt cage+FIA, Braille, RT DL1Mk3
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02-21-2015, 03:24 PM	#7
Mike. Mike: Everyone's Pal 2047 Rep 2,974 Posts Drives: F80 M3 Join Date: May 2013 Location: Eastern Long Island iTrader: (5) Garage List 2013 BMW 335xi [10.00]	This is the pinnacle of a new topic that I've never seen before.
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02-22-2015, 01:27 AM	#13
kengisdrive Enthusiast 1 Rep 9 Posts Drives: 2009 E90 BMW 328i Join Date: May 2014 Location: Orange County iTrader: (0) Garage List 2009 BMW 328i [0.00]	Thanks for the info. Sorta forgot everyone has a 328 here. I'll look into the headers and deleting the cats. Once I take them out I can just place in regular piping that matches the diameter, correct?
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02-23-2015, 12:56 PM	#15
krahooligan Lieutenant 52 Rep 405 Posts Drives: 2008 328i e90 Join Date: Sep 2014 Location: WEST COAST iTrader: (0)	ya you bunch of non having twin turbo mother fuckers. oh shit...I have a non having twin turbo car....NOOOOOOOOOO Naturally Aspirated engines for the WIIIIN.
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02-23-2015, 01:14 PM	#16
EndOfAnEra Lieutenant Colonel 534 Rep 1,707 Posts Drives: F16 X6 Msport Join Date: May 2012 Location: Largo, FL iTrader: (13)	I like my reliable bmw __________________ flickr
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02-23-2015, 02:32 PM	#17
BoogeyMan'sBMW Lieutenant Colonel 127 Rep 1,940 Posts Drives: SLOW Join Date: Jun 2009 Location: Queens NY iTrader: (4)	If you want to keep the muffler, the most significant thing you can do is probably headers. For just sound though (the performance gains are minimal), it is a pretty penny to oay. Deleting secondary cats/resonators can help a bit but the loudest you can get is probably a muffler delete which sounds great on the n52's. I had a dual muffler/res delete and my car sounded AWESOME. Backfires sounded like shotgun blasts. Cheap set up, sounds great, but you have to deal with the drone.
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02-23-2015, 08:16 PM	#22
Pawlin First Lieutenant 62 Rep 375 Posts Drives: E92 N51 Join Date: Jan 2013 Location: San Jose iTrader: (4)	Delete secondary cats and resonator. Here's a thread on mine. http://www.e90post.com/forums/showthread.php?t=1003848 If you want even more, do a muffler delete as well. I opted for a cutout so I could choose between loud or quiet depending on how much of a toolbag I'm feeling.
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