Newb question... simplest way to make my car sound better?

34dean · 08-17-2018, 09:50 AM

Hi all,
I recently picked up a 2015 335i X-drive M Sport. It sounds pretty good inside the cabin but I would like it to sound just a bit more "sports car". Nothing obnoxious, just a bit more growl.

What is my easiest option that is also "budget friendly"?

Thank you in advance for your input.

Mouse · 08-17-2018, 10:22 AM

Resonator delete. Won't be much louder, but if your auto, you'll hear the shift burble a bit more.

Jpup · 08-17-2018, 10:54 AM

Catless downpipe with stock exhaust is a great option. Sounds almost stock except at cold start and WOT on my M235i. You just need BM3/JB4/MHD to suppress the CEL from going catless, or look into a high flow cat.

Lancelot · 08-17-2018, 11:00 AM

High flow cat HJS in europe or fabspeed in US (same inside) will not throw CEL but improve sound, not sure if you'd consider that budget friendly though.

34dean · 08-17-2018, 12:01 PM

Not looking to spend $1300 on a HF cat. just too much $$$.
Any other suggestions? I don't want to throw codes etc.

50shadesofhockenheim · 08-17-2018, 12:08 PM

Quote:

Originally Posted by 34dean

Not looking to spend $1300 on a HF cat. just too much $$$.
Any other suggestions? I don't want to throw codes etc.

Resonator delete won't throw codes and neither will a muffler delete.

Lancelot · 08-17-2018, 12:11 PM

Here's what you need then

Munchi435i · 08-17-2018, 01:11 PM

Quote:

Originally Posted by Lancelot

Here's what you need then

zole2112 · 08-17-2018, 04:41 PM

Downpipe and resonator delete for sure, it did it for me!

ooops, downpipe will throw codes. I would do the resonator and muffler delete then.

34dean · 08-18-2018, 05:31 PM

I've read muffler delete causes awful drones on highway at 2K rpm and less. I can'd deal with that as I do a ton of hw driving. Perhaps just a resonator delete?

zinner · 08-21-2018, 12:54 PM

MPE (M-performance exhaust) and Catless downpipe.

hallonmunk · 08-21-2018, 02:10 PM

i went for MPE and i am satisfied, if u want more u could do a Res delete and MPE!

52172 · 08-22-2018, 09:18 PM

CG precision catted downpipe and resonator delete no codes and sound a lot better. ECS tuning has the downpipes for 640.

mlev · 08-23-2018, 10:55 AM

Pick up an axelback then get a resonator delete. You probably won't be satisfied enough with just a res delete and stock exhaust. I picked up a used MPE and it added a nice growl. Res delete is next for me.

34dean · 08-23-2018, 11:17 AM

Quote:

Originally Posted by mlev

Pick up an axelback then get a resonator delete. You probably won't be satisfied enough with just a res delete and stock exhaust. I picked up a used MPE and it added a nice growl. Res delete is next for me.

MPE is where I think I'm headed.

sumsom3 · 09-19-2018, 10:05 AM

Newb alert**
Hey guys, I have a 320 xDrive with jb1 tune. I deleted the resonator and it sounds pretty nice but I want to give it a little more roar/gurgle/crackles. I don't want to muffle delete because I think that is to much going into school. People suggested a Highflow downpipe but i don't know anything about it. Does anyone know the negatives about getting one? ie: engine light, legality, dangerousness to the car.
Thank you.

mlev · 09-20-2018, 11:15 AM

Quote:

Originally Posted by sumsom3

Newb alert**
Hey guys, I have a 320 xDrive with jb1 tune. I deleted the resonator and it sounds pretty nice but I want to give it a little more roar/gurgle/crackles. I don't want to muffle delete because I think that is to much going into school. People suggested a Highflow downpipe but i don't know anything about it. Does anyone know the negatives about getting one? ie: engine light, legality, dangerousness to the car.
Thank you.

Advantages of catless dp: better performance, sounds great

Disadvantages: voids warranty for a number of components, strong smell of exhaust, check engine light on (some tunes can remove this). You will fail emissions test/inspection in most states and have to remove it beforehand. You have the option of running a catted downpipe to avoid some of this, but they are more expensive.

Other reasonable options: have a custom exhaust built /w magnaflow (or something similar) or purchase an axelback

bimmer456 · 09-20-2018, 11:17 AM

BMS intake.

_bdiddyb_ · 09-20-2018, 11:58 AM

I would upgrade the woofers under the seats and then crank up the ASD volume

cjack · 09-20-2018, 08:59 PM

Try opening the exhaust flap (basically forces the one side of the exhaust that has a valve to be open all the time). It won't make the same noise as a cat less or new exhaust, but it's free to do...

This assumes you have a dual exhaust...

sumsom3 · 09-24-2018, 06:18 PM

Trynna get catted downpipe and need suggestions, cheap would be best but also want the safest and best.

louielouie · 09-24-2018, 06:37 PM

Quote:

Originally Posted by sumsom3

Trynna get catted downpipe and need suggestions, cheap would be best but also want the safest and best.

Assuming you mean no CEL = safe; high flow cats that don't produce CELs are not cheap so you might be out of luck...

The only ones I'm aware of for the N55 are the Wagner w/ the EUR6 and Fabspeed. I don't even know if they make N20 versions.

08-17-2018, 09:50 AM	#1
34dean Lieutenant 88 Rep 409 Posts Drives: 2015 335i X-drive M Sport Join Date: Dec 2008 Location: CT iTrader: (1)	Newb question... simplest way to make my car sound better? Hi all, I recently picked up a 2015 335i X-drive M Sport. It sounds pretty good inside the cabin but I would like it to sound just a bit more "sports car". Nothing obnoxious, just a bit more growl. What is my easiest option that is also "budget friendly"? Thank you in advance for your input. __________________ 2015 335i X-drive, Black Sapphire Metallic, M Sport package LOADED. MPE/VRSF Charge Pipe/BM3 Stage 1 93 Octane
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08-17-2018, 10:22 AM	#2
Mouse Second Lieutenant 95 Rep 279 Posts Drives: 2013F30 335i Join Date: Aug 2016 Location: Cypress, TX iTrader: (0)	Resonator delete. Won't be much louder, but if your auto, you'll hear the shift burble a bit more. __________________ 13' F30 335i - BMS Intake -- VRSF DP -- VRSF CP -- VRSF 5" Stepped Intercooler -- Corsa Touring Catback -- JB4 -- H&R Springs -- Miro Flow Formed F25's
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08-17-2018, 10:54 AM	#3
Jpup Private 26 Rep 63 Posts Drives: 2015 435i Join Date: Apr 2018 Location: Ventura, CA iTrader: (0)	Catless downpipe with stock exhaust is a great option. Sounds almost stock except at cold start and WOT on my M235i. You just need BM3/JB4/MHD to suppress the CEL from going catless, or look into a high flow cat. __________________ 2015 435i (current): VRSF Catless Downpipe, Bootmod3 Stage 1, xHP 2008 Corvette (sold):Vortech supercharger, ported/built heads, catless 2015 M235i (sold): CTS Turbo Intake, VRSF Catless Downpipe, CSF FMIC, MPE, xHP, Bootmod3 Stage 2 E30
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08-17-2018, 11:00 AM	#4
Lancelot Major 570 Rep 1,295 Posts Drives: 2017 m550i Join Date: Sep 2012 Location: France iTrader: (0)	High flow cat HJS in europe or fabspeed in US (same inside) will not throw CEL but improve sound, not sure if you'd consider that budget friendly though. __________________ 2017 M550i \| Sophistograu Previous cars: 2014 F30 ActiveHybrid 3 \| 2012 f20 M135i
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08-17-2018, 12:01 PM	#5
34dean Lieutenant 88 Rep 409 Posts Drives: 2015 335i X-drive M Sport Join Date: Dec 2008 Location: CT iTrader: (1)	Not looking to spend $1300 on a HF cat. just too much $$$. Any other suggestions? I don't want to throw codes etc. __________________ 2015 335i X-drive, Black Sapphire Metallic, M Sport package LOADED. MPE/VRSF Charge Pipe/BM3 Stage 1 93 Octane
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08-17-2018, 12:11 PM	#7
Lancelot Major 570 Rep 1,295 Posts Drives: 2017 m550i Join Date: Sep 2012 Location: France iTrader: (0)	Here's what you need then __________________ 2017 M550i \| Sophistograu Previous cars: 2014 F30 ActiveHybrid 3 \| 2012 f20 M135i
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08-17-2018, 04:41 PM	#9
zole2112 Modder of everything I own 147 Rep 491 Posts Drives: 2013 335i Xdrive Join Date: Mar 2017 Location: Appleton, WI iTrader: (0)	Downpipe and resonator delete for sure, it did it for me! ooops, downpipe will throw codes. I would do the resonator and muffler delete then. __________________ 2013 BMW 335xi F30 N55 PWG/VRSF DP/ER CP/Injen CAI/AA FMIC/JB4 map 7/Fuel= E50 w/ E85:93oct/Stock LPFP & HPFP/CATuned coilovers/Megan Racing Rear Swaybar/Powerflex Rear Subframe Bushing Inserts/Dual aFe Power Mach Force Mufflers/Resonator Delete/MHD & BMS Race BEF
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08-18-2018, 05:31 PM	#10
34dean Lieutenant 88 Rep 409 Posts Drives: 2015 335i X-drive M Sport Join Date: Dec 2008 Location: CT iTrader: (1)	I've read muffler delete causes awful drones on highway at 2K rpm and less. I can'd deal with that as I do a ton of hw driving. Perhaps just a resonator delete? __________________ 2015 335i X-drive, Black Sapphire Metallic, M Sport package LOADED. MPE/VRSF Charge Pipe/BM3 Stage 1 93 Octane
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08-21-2018, 12:54 PM	#11
zinner Major 561 Rep 1,130 Posts Drives: `17 X5 35d/`15 335i/`18 M550IX Join Date: Oct 2014 Location: Raleigh, NC iTrader: (0)	MPE (M-performance exhaust) and Catless downpipe.
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08-21-2018, 02:10 PM	#12
hallonmunk New Member 5 Rep 6 Posts Drives: Glacier Silver 328i 2012 Join Date: Jul 2018 Location: Sweden iTrader: (0)	i went for MPE and i am satisfied, if u want more u could do a Res delete and MPE!
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08-22-2018, 09:18 PM	#13
52172 Captain 157 Rep 928 Posts Drives: 2015 Bronze Metallic 335i Join Date: Aug 2018 Location: Buellton iTrader: (0)	CG precision catted downpipe and resonator delete no codes and sound a lot better. ECS tuning has the downpipes for 640. __________________ 2015 335i 6sp manual with MPK and sport pack GPlus intercooler and CP. Stage 1. CG precision dp. Staggered 19?s. 275/35/19, 245/40/19 ps4s.
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08-23-2018, 10:55 AM	#14
mlev Lieutenant 371 Rep 552 Posts Drives: 2022 Tesla Model Y Performance Join Date: Mar 2017 Location: Los Angeles iTrader: (4)	Pick up an axelback then get a resonator delete. You probably won't be satisfied enough with just a res delete and stock exhaust. I picked up a used MPE and it added a nice growl. Res delete is next for me.
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09-19-2018, 10:05 AM	#16
sumsom3 New Member 0 Rep 25 Posts Drives: 2014 320xi xDrive with jb1 tun Join Date: Sep 2018 Location: Massachusetts iTrader: (0)	Newb alert** Hey guys, I have a 320 xDrive with jb1 tune. I deleted the resonator and it sounds pretty nice but I want to give it a little more roar/gurgle/crackles. I don't want to muffle delete because I think that is to much going into school. People suggested a Highflow downpipe but i don't know anything about it. Does anyone know the negatives about getting one? ie: engine light, legality, dangerousness to the car. Thank you.
	Appreciate 0 Quote

09-20-2018, 11:17 AM	#18
bimmer456 Major General 2998 Rep 6,045 Posts Drives: 340i Join Date: Nov 2016 Location: Pasadena, CA iTrader: (0)	BMS intake.
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09-20-2018, 11:58 AM	#19
_bdiddyb_ Lieutenant 215 Rep 558 Posts Drives: 2013 335i Join Date: Aug 2013 Location: California iTrader: (1)	I would upgrade the woofers under the seats and then crank up the ASD volume
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09-20-2018, 08:59 PM	#20
cjack Second Lieutenant 30 Rep 282 Posts Drives: 435X, EBII, 6MT, PPK + 2019 X5 Join Date: Feb 2013 Location: Vancouver, BC iTrader: (0)	Try opening the exhaust flap (basically forces the one side of the exhaust that has a valve to be open all the time). It won't make the same noise as a cat less or new exhaust, but it's free to do... This assumes you have a dual exhaust...
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09-24-2018, 06:18 PM	#21
sumsom3 New Member 0 Rep 25 Posts Drives: 2014 320xi xDrive with jb1 tun Join Date: Sep 2018 Location: Massachusetts iTrader: (0)	Trynna get catted downpipe and need suggestions, cheap would be best but also want the safest and best.
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