Pop and burble sound

Twixboy · 05-12-2016, 10:19 AM

I hear pop/burble from time to time on my 3.0i if it's in sport mode, but how can I get this sound louder and with more regularity under normal driving conditions? What's the easiest/cheapest way to achieve this sound without being too loud (e.g. without putting in supersprints)?

Steeler · 05-12-2016, 11:11 AM

SS FTW

SCHMOUPE · 05-12-2016, 11:17 AM

Quote:

Originally Posted by Twixboy

I hear pop/burble from time to time on my 3.0i if it's in sport mode, but how can I get this sound louder and with more regularity under normal driving conditions? What's the easiest/cheapest way to achieve this sound without being too loud (e.g. without putting in supersprints)?

hmm straight pipes? otherwise a less restricting set of mufflers.

Twixboy · 05-12-2016, 12:10 PM

So this sound is strictly a result of the amount of air flow through the exhaust and has nothing to do with your airbox or anything else in the engine bay? I think SS are too loud and straight pipes are illegal, so maybe I can try to weld an aftermarket generic muffler. I'm just scared the sound will be horrible and I don't like wasting money experimenting on things like this.

Mirko · 05-12-2016, 12:21 PM

I got it with exhaust, x-pipe made it more pronounced and headers made it a regular occurrence.

Steeler · 05-12-2016, 01:14 PM

check out my SS and Magnaflow custom.

http://www.zpost.com/forums/showthread.php?t=1252417

Vanne · 05-12-2016, 04:45 PM

Yup exhaust , and more pronounced with sport button in.

Huz-Z · 05-13-2016, 12:31 PM

Spicy Mexican food can be pretty darn effective too if you ask me.

3GFX · 05-13-2016, 01:13 PM

Your option is to modify the exhaust substantially.

I wanted the same thing, so I started with a Dinan aftermarket muffler. It honestly made hardly any difference other than deepening the tone a weeeeee bit.

Headers made all the difference and I am in love with the sound.

Budget $600 - $2000 and you can get a custom or aftermarket setup that will pass emissions and get the sound your after. Obviously the more you spend the better the quality of work and parts.

Simple and cheapest change would be to get rid of the rear muffler all together. Pop onto youtube and type in Z4 exhaust. Have a listen and go from there.

pokeybritches · 05-13-2016, 06:18 PM

Headers and high flow cats.

StickMon · 05-19-2016, 04:54 PM

My Son just got a "fix it" ticket for the Flowmaster on his Ram 1500.
We're totally bummed.

No more ear bacon for him.

My car's even louder. Have to be careful.
I don't want to have to "fix" $2000 in exhaust mods.

Beedub · 05-20-2016, 12:09 PM

Quote:

Originally Posted by pokeybritches

Headers and high flow cats.

+100

pyo · 05-20-2016, 12:31 PM

I removed my muffler. Straight pipes from the 2nd cat back. Pops and burbles all day.

E86Z · 05-20-2016, 12:45 PM

Different engine here but I took out my secondary cats, I get a very subtle pop and burble lifting from 3000rpm. I'd follow dbarton's instructions he tried many combos prior to his final set up

Also, I sent you a pm a while back twix

Twixboy · 05-23-2016, 08:24 AM

Quote:

Originally Posted by E86Z

Different engine here but I took out my secondary cats, I get a very subtle pop and burble lifting from 3000rpm. I'd follow dbarton's instructions he tried many combos prior to his final set up

Also, I sent you a pm a while back twix

Replied

Twixboy · 05-23-2016, 08:26 AM

Great suggestions everyone. Unfortunately I'm relocating my family next month for a temporary job assignment. I was getting ready to take the Z out of hibernation Memorial Day weekend, but now it looks like my driving season is only going to be 3 weeks before I need to put it back into storage. I need to subscribe to this thread and look at it again when I come home next year.

Vanne · 05-24-2016, 10:16 PM

Good luck with the relocation Twix, hope it all goes as planned mate. There's always another season to drive and mod the zed

05-12-2016, 10:19 AM	#1
Twixboy Captain 124 Rep 904 Posts Drives: '04 Z4 3.0i 6spd Join Date: Mar 2015 Location: MA iTrader: (2)	Pop and burble sound I hear pop/burble from time to time on my 3.0i if it's in sport mode, but how can I get this sound louder and with more regularity under normal driving conditions? What's the easiest/cheapest way to achieve this sound without being too loud (e.g. without putting in supersprints)?
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05-12-2016, 11:11 AM	#2
Steeler Colonel 2428 Rep 2,704 Posts Drives: Built not Bought 04 Z4 VF Join Date: Feb 2013 Location: Kitchener Ontario Canada iTrader: (2)	SS FTW __________________ W2A Intercooled Vortech V3Si, custom ducting, Alpha N, 60# Bosch,2.62 pulley, multi port WMI, Severn Tuning(pokeybritches), Tial, magnaflow,SS race muffler, 42 design,3.91LSD, H&R, Hotchkis,ST coils,Konis, Megan camber arms, AKG SS, Nylon mounts, Poly bushings, Carbon interior, CF Aero.APEX
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05-12-2016, 12:10 PM	#4
Twixboy Captain 124 Rep 904 Posts Drives: '04 Z4 3.0i 6spd Join Date: Mar 2015 Location: MA iTrader: (2)	So this sound is strictly a result of the amount of air flow through the exhaust and has nothing to do with your airbox or anything else in the engine bay? I think SS are too loud and straight pipes are illegal, so maybe I can try to weld an aftermarket generic muffler. I'm just scared the sound will be horrible and I don't like wasting money experimenting on things like this.
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05-12-2016, 12:21 PM	#5
Mirko Major 182 Rep 1,031 Posts Drives: E86 Z4M, E90 328i, E84 X1 Join Date: Apr 2011 Location: Toronto iTrader: (2)	I got it with exhaust, x-pipe made it more pronounced and headers made it a regular occurrence. __________________ 08 M Coupe • Ceramic Black Fabspeed Headers • MCS 1WNR • Poly FCAB • Stoptech BBK • Vibra-Tech • Epic Tune • Apex EC7 • RPI Scoop • Eventuri • Stromung • Rogue X Pipe • Varis Diffuser • CF E92 GTS Wing • CF Roof
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05-12-2016, 01:14 PM	#6
Steeler Colonel 2428 Rep 2,704 Posts Drives: Built not Bought 04 Z4 VF Join Date: Feb 2013 Location: Kitchener Ontario Canada iTrader: (2)	check out my SS and Magnaflow custom. http://www.zpost.com/forums/showthread.php?t=1252417 __________________ W2A Intercooled Vortech V3Si, custom ducting, Alpha N, 60# Bosch,2.62 pulley, multi port WMI, Severn Tuning(pokeybritches), Tial, magnaflow,SS race muffler, 42 design,3.91LSD, H&R, Hotchkis,ST coils,Konis, Megan camber arms, AKG SS, Nylon mounts, Poly bushings, Carbon interior, CF Aero.APEX
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05-12-2016, 04:45 PM	#7
Vanne Down Under!! 1621 Rep 4,294 Posts Drives: 2007 Z4MC Join Date: Mar 2013 Location: Dubai iTrader: (4)	Yup exhaust , and more pronounced with sport button in. __________________ 2007 EuroSpec Z4///MC - Building/Developing Z4 GT3 Powered by
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05-13-2016, 12:31 PM	#8
Huz-Z Brigadier General 851 Rep 4,057 Posts Drives: Z4 3.0si, 328 XDrive, X5 35i Join Date: Aug 2009 Location: Canada iTrader: (0)	Spicy Mexican food can be pretty darn effective too if you ask me. __________________ Huz-Z BMW Z4 3.0si Roadster. Montego Blue Metallic. Premium and Sport Package.
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05-13-2016, 01:13 PM	#9
3GFX Captain 723 Rep 912 Posts Drives: 2003 BMW Z4 3.0i Join Date: Sep 2015 Location: Ontario iTrader: (0)	Your option is to modify the exhaust substantially. I wanted the same thing, so I started with a Dinan aftermarket muffler. It honestly made hardly any difference other than deepening the tone a weeeeee bit. Headers made all the difference and I am in love with the sound. Budget $600 - $2000 and you can get a custom or aftermarket setup that will pass emissions and get the sound your after. Obviously the more you spend the better the quality of work and parts. Simple and cheapest change would be to get rid of the rear muffler all together. Pop onto youtube and type in Z4 exhaust. Have a listen and go from there.
	Appreciate 1 Quote

05-13-2016, 06:18 PM	#10
pokeybritches Colonel 479 Rep 2,782 Posts Drives: ESS/G-Power Z4M, VF Z4, 996tt Join Date: Sep 2009 Location: Los Angeles iTrader: (12) Garage List 2006 BMW Z4M [10.00] 2006 BMW Z4M [8.50] 2003 BMW Z4 3.0i [9.00]	Headers and high flow cats. __________________ VF Engineering Z4 3.0i, ESS Z4M, G-Power Z4M, 996 Turbo
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05-19-2016, 04:54 PM	#11
StickMon My other car is on Mars 636 Rep 3,124 Posts Drives: 2006 MR Join Date: Feb 2011 Location: Lo-Cal iTrader: (1)	My Son just got a "fix it" ticket for the Flowmaster on his Ram 1500. We're totally bummed. No more ear bacon for him. My car's even louder. Have to be careful. I don't want to have to "fix" $2000 in exhaust mods. __________________ Warning: May contain traces of nuts.
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05-20-2016, 12:31 PM	#13
pyo Lieutenant 551 Rep 541 Posts Drives: 2022 X3MC Join Date: Feb 2012 Location: Fairfax, VA iTrader: (1) Garage List 2022 BMW X3M Compet ... [7.13]	I removed my muffler. Straight pipes from the 2nd cat back. Pops and burbles all day.
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05-20-2016, 12:45 PM	#14
E86Z First Lieutenant 63 Rep 313 Posts Drives: 3.0si Join Date: Jun 2011 Location: Canada iTrader: (1)	Different engine here but I took out my secondary cats, I get a very subtle pop and burble lifting from 3000rpm. I'd follow dbarton's instructions he tried many combos prior to his final set up Also, I sent you a pm a while back twix
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05-23-2016, 08:26 AM	#16
Twixboy Captain 124 Rep 904 Posts Drives: '04 Z4 3.0i 6spd Join Date: Mar 2015 Location: MA iTrader: (2)	Great suggestions everyone. Unfortunately I'm relocating my family next month for a temporary job assignment. I was getting ready to take the Z out of hibernation Memorial Day weekend, but now it looks like my driving season is only going to be 3 weeks before I need to put it back into storage. I need to subscribe to this thread and look at it again when I come home next year. Last edited by Twixboy; 05-23-2016 at 08:35 AM..
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05-24-2016, 10:16 PM	#17
Vanne Down Under!! 1621 Rep 4,294 Posts Drives: 2007 Z4MC Join Date: Mar 2013 Location: Dubai iTrader: (4)	Good luck with the relocation Twix, hope it all goes as planned mate. There's always another season to drive and mod the zed __________________ 2007 EuroSpec Z4///MC - Building/Developing Z4 GT3 Powered by
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