Quietest aftermarket exhaust

marcvtec · 07-16-2013, 03:08 PM

Since I have the stg 2 turbos coming
I should probably upgrade the exhaust.
Which one makes the least noise possibly with high flow secondary cats?
So from the dps back

Thanks

E90Company · 07-16-2013, 03:11 PM

VRSF's exhaust is pretty quiet for a catless catback. For a system with cats (axle-back mufflers) Dinan's mufflers sound very nice, and arn't too loud.

135Pats · 07-16-2013, 03:11 PM

Dinan

JStang · 07-16-2013, 03:19 PM

Dinan is quiet until you give it hell then it really wakes up.

akotten · 07-16-2013, 03:22 PM

Quote:

Originally Posted by JStang

Dinan is quiet until you give it hell then it really wakes up.

Do you also shed most of the factory weight?

E90Company · 07-16-2013, 03:25 PM

Quote:

Originally Posted by akotten

Do you also shed most of the factory weight?

No because it's just mufflers.

JStang · 07-16-2013, 03:27 PM

Quote:

Originally Posted by akotten

Do you also shed most of the factory weight?

It is a few lbs. lighter but nothing crazy.

marcvtec · 07-16-2013, 04:17 PM

So maybe custom pipes and cats with the dinan mufflers?

joec500 · 07-16-2013, 04:18 PM

Not sure if you have an E90 or E92, but I find the 2007 stock exhausts on the E92 sound great. I think they made changes to successive years and made them quieter, so if you have 2008+ and later E92, try to source a 2007 E92 stock exhaust and if you want it louder, just cut out the secondary cats and weld in a straight pipe. Will be much cheaper and will not have the drone that many aftermarket exhausts have.

marcvtec · 07-16-2013, 04:23 PM

Quote:

Originally Posted by joec500

Not sure if you have an E90 or E92, but I find the 2007 stock exhausts on the E92 sound great. I think they made changes to successive years and made them quieter, so if you have 2008+ and later E92, try to source a 2007 E92 stock exhaust and if you want it louder, just cut out the secondary cats and weld in a straight pipe. Will be much cheaper and will not have the drone that many aftermarket exhausts have.

E92 2006 build.
Yes the exhaust is nice at wot with the castles downpipes.
I just like the no drone at cruise.
But with new turbos coming I would like to push more volume through like three inch piping mandrel bent with maybe like 200 cel count cats just to kill some smell.

Do you think keeping the stock mufflers creates any substantial restrictions ?
So 3 inch pipe from dps with high flo cats but keeping the muffs?
Ideas

ihc95 · 07-16-2013, 05:49 PM

HKS has an amazing exhaust. Definitely in my future.

joec500 · 07-16-2013, 09:50 PM

Quote:

Originally Posted by marcvtec

Quote:

Originally Posted by joec500

Not sure if you have an E90 or E92, but I find the 2007 stock exhausts on the E92 sound great. I think they made changes to successive years and made them quieter, so if you have 2008+ and later E92, try to source a 2007 E92 stock exhaust and if you want it louder, just cut out the secondary cats and weld in a straight pipe. Will be much cheaper and will not have the drone that many aftermarket exhausts have.

E92 2006 build.
Yes the exhaust is nice at wot with the castles downpipes.
I just like the no drone at cruise.
But with new turbos coming I would like to push more volume through like three inch piping mandrel bent with maybe like 200 cel count cats just to kill some smell.

Do you think keeping the stock mufflers creates any substantial restrictions ?
So 3 inch pipe from dps with high flo cats but keeping the muffs?
Ideas

I would research but I don't think car back exhaust provide any substantial HP gains. You could remove the secondaries to free it up a bit, but I would be surprised if you gains more than 8-10 whp.

joec500 · 07-16-2013, 10:16 PM

Quote:

Originally Posted by ihc95

HKS has an amazing exhaust. Definitely in my future.

Agreed, every car I have heard with an HKS piece always sounded great, can't speak of the drone though.

Tiago@VRSF · 07-16-2013, 10:22 PM

Our 3.5" exhaust shaves just over 40lbs of weight and has little to no drone in comparison to the other guys. Here's a few videos:

http://www.youtube.com/results?searc...q=vrsf+exhaust

TTurbo335 · 07-16-2013, 11:23 PM

Dinan free flow exhaust is pretty dam quite... I have AR catless downpipes and a supersprint X pipe with the exhaust and still very quite... UNTIL WOT

ken1137 · 07-16-2013, 11:33 PM

I have never used them but I give my vote to VSRF for a tame exhaust based on a lot of vids. Dinan and the PE get a bit loud as well as some of the others. I prefer a little more sound, the wifey doesn't, so I bought the BMW PE.

enrita · 07-17-2013, 04:39 AM

just keep the stock setup with catless dps. if you want more flow you can weld some race 100 cells cats as i have done. best sound and emissions are in check at least where i live.

fl335i · 07-17-2013, 08:25 AM

I have an '07. July '07 build to be exact. I did a HKS and it was about as loud as I wanted, but still too much for Daily Driver use on 8+hr trips. So I sold it and bought another '07 factory exhaust from a local member. I am really surprised how loud the stock exhaust is. With the golf tee mod it's "perfect" to me. There may be some truth to the later models being quieter.

marcvtec · 07-17-2013, 03:59 PM

Anyone know the cel count on the secondary oem cats ?

joec500 · 07-17-2013, 06:10 PM

Quote:

Originally Posted by marcvtec

Anyone know the cel count on the secondary oem cats ?

You shouldn't throw codes with your secondaries removed. If you search around I know someone opened up secondary cats and it was only filled with like what appeared to be sound deadening type material.

But if you have a tune, it should be able to remove any possible CEL's, but you should be good to go assuming you have your primaries installed.

3000GT MR · 07-17-2013, 06:31 PM

Quote:

Originally Posted by Tiago@VRSF

Our 3.5" exhaust shaves just over 40lbs of weight and has little to no drone in comparison to the other guys. Here's a few videos:

http://www.youtube.com/results?searc...q=vrsf+exhaust

Little to no drone? Try none!! Although i haven't ran the exhaust with stock turbos and catless dp's. It sounds perfect with single turbo and no cats.

dlbrooks18 · 07-17-2013, 06:54 PM

Quote:

Originally Posted by enrita

just keep the stock setup with catless dps. if you want more flow you can weld some race 100 cells cats as i have done. best sound and emissions are in check at least where i live.

+1 stock exhaust will suffice

07-16-2013, 03:08 PM	#1
marcvtec Banned 407 Rep 2,704 Posts Drives: M5 Join Date: Oct 2006 Location: toronto iTrader: (0)	Quietest aftermarket exhaust Since I have the stg 2 turbos coming I should probably upgrade the exhaust. Which one makes the least noise possibly with high flow secondary cats? So from the dps back Thanks
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07-16-2013, 03:11 PM	#2
E90Company Major General 194 Rep 6,136 Posts Drives: Car Join Date: Mar 2012 Location: FL iTrader: (2)	VRSF's exhaust is pretty quiet for a catless catback. For a system with cats (axle-back mufflers) Dinan's mufflers sound very nice, and arn't too loud.
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07-16-2013, 03:11 PM	#3
135Pats Major General 456 Rep 6,478 Posts Drives: A few BMWs Join Date: May 2012 Location: Maryland iTrader: (3)	Dinan
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07-16-2013, 03:19 PM	#4
JStang Brigadier General 562 Rep 3,625 Posts Drives: FDB M3 CS Join Date: Dec 2010 Location: St. Petersburg, FL iTrader: (9)	Dinan is quiet until you give it hell then it really wakes up.
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07-16-2013, 04:17 PM	#8
marcvtec Banned 407 Rep 2,704 Posts Drives: M5 Join Date: Oct 2006 Location: toronto iTrader: (0)	So maybe custom pipes and cats with the dinan mufflers?
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07-16-2013, 04:18 PM	#9
joec500 Brigadier General 125 Rep 3,004 Posts Drives: it has 4 wheels Join Date: Jul 2008 Location: San Francisco iTrader: (10)	Not sure if you have an E90 or E92, but I find the 2007 stock exhausts on the E92 sound great. I think they made changes to successive years and made them quieter, so if you have 2008+ and later E92, try to source a 2007 E92 stock exhaust and if you want it louder, just cut out the secondary cats and weld in a straight pipe. Will be much cheaper and will not have the drone that many aftermarket exhausts have. __________________ 2007 E92 6MT SGM: MusicarNW Level 2, Procede Rev 2.5, FFTEC/Vishnu LPFP with Flexfuel Sensor and Flash, M3 Offset V701's, WaveTrac LSD, Michelin PSS, Downpipes, M3 Control Arms, TCKline D/A Suspension, LCI Tail lights, Lux AE's, ER Charge Pipe, DCI's, Mtech Front and Rear, M3 Sideskirts, HPF Stage 1 Clutch
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07-16-2013, 05:49 PM	#11
ihc95 Major 145 Rep 1,314 Posts Drives: 2021 X3 M40i, 2018 Mustang GT Join Date: Jul 2011 Location: NJ iTrader: (1) Garage List 2007 BMW 335i Coupe [0.00]	HKS has an amazing exhaust. Definitely in my future.
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07-16-2013, 10:22 PM	#14
Tiago@VRSF 2095 Rep 43,350 Posts Drives: F90 M5 Join Date: Dec 2007 Location: Doral, FL iTrader: (99) Garage List 2014 F30 328xi [0.00] 2015 F82 BMW M4 [0.00] 2013 Ducati 1199 Pa ... [0.00] 2008 BMW 335i [0.00]	Our 3.5" exhaust shaves just over 40lbs of weight and has little to no drone in comparison to the other guys. Here's a few videos: http://www.youtube.com/results?searc...q=vrsf+exhaust
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07-16-2013, 11:23 PM	#15
TTurbo335 Second Lieutenant 21 Rep 200 Posts Drives: BMW 335i Join Date: Nov 2012 Location: So Cal iTrader: (2)	Dinan free flow exhaust is pretty dam quite... I have AR catless downpipes and a supersprint X pipe with the exhaust and still very quite... UNTIL WOT
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07-16-2013, 11:33 PM	#16
ken1137 Brigadier General 89 Rep 3,732 Posts Drives: BMW S1000XR Join Date: Jun 2011 Location: Gilbert, AZ iTrader: (7) Garage List 2009 e90 335i [6.40]	I have never used them but I give my vote to VSRF for a tame exhaust based on a lot of vids. Dinan and the PE get a bit loud as well as some of the others. I prefer a little more sound, the wifey doesn't, so I bought the BMW PE. __________________ BMWCCA member
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07-17-2013, 04:39 AM	#17
enrita Major General 161 Rep 7,377 Posts Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden iTrader: (0)	just keep the stock setup with catless dps. if you want more flow you can weld some race 100 cells cats as i have done. best sound and emissions are in check at least where i live. __________________ 07 335i AT - MOTIV 750 - MHD E85 BMS flash - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Snow Stg. 3 - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
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07-17-2013, 08:25 AM	#18
fl335i Captain 146 Rep 942 Posts Drives: 335i Join Date: Oct 2010 Location: FL iTrader: (2)	I have an '07. July '07 build to be exact. I did a HKS and it was about as loud as I wanted, but still too much for Daily Driver use on 8+hr trips. So I sold it and bought another '07 factory exhaust from a local member. I am really surprised how loud the stock exhaust is. With the golf tee mod it's "perfect" to me. There may be some truth to the later models being quieter. __________________ '07 335i Sedan, base pkg, 6spd Manual, Procede 3 V5 w/NLS, Macht Schnell Downpipes, 18" Staggered 313's w/Conti DWS's, OS Giken TCD LSD, VAC Street Diff Cover, Dinan Oil Cooler, Dinan Intercooler, Akebono Euro Pads, CDV Removed, Black BMW Grilles, Interior & Exterior white LED lighting, LUX Angel Eyes, Debadged, Blend V1 mount, Llumar ATR Tint.
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07-17-2013, 03:59 PM	#19
marcvtec Banned 407 Rep 2,704 Posts Drives: M5 Join Date: Oct 2006 Location: toronto iTrader: (0)	Anyone know the cel count on the secondary oem cats ?
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