Cold start

Turxor · 04-06-2016, 01:47 PM

Hi!

When I cold start my engine and accelerate. The exhaust gives a loud screaming sound for a second. All N54 engine owners know this.

But as you also know, this sounds only appears on the first acceleration after a cold start.

Now my question is: Is it somehow possible to get that sound even when the engine is warm? I want that sound every time I accelerate. Without changing parts in my exhaust system.

My downpipes is catless.

Thanks!

Jazzyboy · 04-06-2016, 02:43 PM

That sweet sweet roar eh!

HCGxKaLiBeR · 04-06-2016, 02:47 PM

It is possible if you can find a device that can change your car's fuel mixture and timing. However, I don't think any of the piggyback or flash on the market can do it.

OzCoE92 · 04-06-2016, 03:06 PM

Stock exhaust? If so, do the golf tee mod or pull the plug in the trunk to make the valve stay open all the time. Either that or get an aftermarket exhaust with no flap. Check through the diy section here, there are plenty of threads about it.

mashimarho · 04-06-2016, 03:08 PM

Quote:

Originally Posted by Jazzyboy

That sweet sweet roar eh!

I can tell you're from Canada, eh!

Turxor · 04-06-2016, 03:47 PM

Quote:

Originally Posted by HCGxKaLiBeR

It is possible if you can find a device that can change your car's fuel mixture and timing. However, I don't think any of the piggyback or flash on the market can do it.

Hi! Thanks! Do you have more information about this? Anytuhing I can search on google maby?

Turxor · 04-06-2016, 03:53 PM

I already have golf tee mod

joeinsd · 04-07-2016, 01:09 PM

MHD Tuning Martial has been able to disable the cold start within his tuning maps. Maybe he has some insight on this. I personally don't think you'd want cold parameters 100% of the time though.

mike@x-ph.com · 04-07-2016, 04:10 PM

Quote:

Originally Posted by Turxor

Hi!

When I cold start my engine and accelerate. The exhaust gives a loud screaming sound for a second. All N54 engine owners know this.

But as you also know, this sounds only appears on the first acceleration after a cold start.

Now my question is: Is it somehow possible to get that sound even when the engine is warm? I want that sound every time I accelerate. Without changing parts in my exhaust system.

My downpipes is catless.

Thanks!

Get a more aggressive exhaust ... REMUS is my favorite

gabylonfive · 04-07-2016, 04:17 PM

ETS sounds nice as well. I love mine!

PNWN54 · 04-07-2016, 09:51 PM

Get a PE exhaust, it's quite aggressive with downpipes. It'll sound all that and then some!

amrazM · 04-08-2016, 12:12 PM

the noise is from the wastegate position of the cold start.

AK. · 04-08-2016, 01:05 PM

You want that sound? Straight pipe.

04-06-2016, 01:47 PM	#1
Turxor New Member 2 Rep 7 Posts Drives: BMW 335ci Join Date: Jun 2015 Location: Sweden iTrader: (0)	Cold start - Loud exhaust sound Hi! When I cold start my engine and accelerate. The exhaust gives a loud screaming sound for a second. All N54 engine owners know this. But as you also know, this sounds only appears on the first acceleration after a cold start. Now my question is: Is it somehow possible to get that sound even when the engine is warm? I want that sound every time I accelerate. Without changing parts in my exhaust system. My downpipes is catless. Thanks!
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04-06-2016, 02:43 PM	#2
Jazzyboy New Member 0 Rep 5 Posts Drives: E93 335i Join Date: Apr 2016 Location: Calgary Ab iTrader: (0)	That sweet sweet roar eh!
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04-06-2016, 02:47 PM	#3
HCGxKaLiBeR Private 13 Rep 92 Posts Drives: 2009 N54 335i Convertible Join Date: Aug 2014 Location: CT iTrader: (0)	It is possible if you can find a device that can change your car's fuel mixture and timing. However, I don't think any of the piggyback or flash on the market can do it. __________________ JB4 Map 5, HKS SSQV 4 BOV, aFe stage 2 cold air intake with scoops, Alpina B3 flash
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04-06-2016, 03:06 PM	#4
OzCoE92 Lieutenant 94 Rep 448 Posts Drives: 2012 BMW M3 Join Date: Jun 2014 Location: Wisconsin iTrader: (3)	Stock exhaust? If so, do the golf tee mod or pull the plug in the trunk to make the valve stay open all the time. Either that or get an aftermarket exhaust with no flap. Check through the diy section here, there are plenty of threads about it.
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04-06-2016, 03:53 PM	#7
Turxor New Member 2 Rep 7 Posts Drives: BMW 335ci Join Date: Jun 2015 Location: Sweden iTrader: (0)	I already have golf tee mod
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04-07-2016, 01:09 PM	#8
joeinsd Captain 288 Rep 899 Posts Drives: Stock 2010 e92 335i M Sport Join Date: Apr 2015 Location: San Diego iTrader: (9)	MHD Tuning Martial has been able to disable the cold start within his tuning maps. Maybe he has some insight on this. I personally don't think you'd want cold parameters 100% of the time though.
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04-07-2016, 04:17 PM	#10
gabylonfive First Lieutenant 52 Rep 335 Posts Drives: 04 M3, 05 Elise Join Date: Oct 2013 Location: Bay Area, CA iTrader: (3)	ETS sounds nice as well. I love mine!
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04-07-2016, 09:51 PM	#11
PNWN54 MR. Rocket 48 Rep 398 Posts Drives: 2010 E92 335i M-Sport Join Date: May 2013 Location: Portland, OR iTrader: (2) Garage List 2010 E92 BMW 335i [0.00]	Get a PE exhaust, it's quite aggressive with downpipes. It'll sound all that and then some! __________________ \|2010 E92 335i 6MT\\\M-Sport///225M 19" Rims, MHD PTF Stg 2+, Fuel IT Stage 2 LPFP, VRSF Downpipes, CDV Delete, ER CP & 5" IC, Forge DV, PE Modded Mufflers, BMS DCI & Cowl Delete, CYBA Tips, ST Coils, M3 Control Arms, E93 M3 Sway Bar, Michelin PSS\|
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04-08-2016, 12:12 PM	#12
amrazM mTekMods 2292 Rep 3,036 Posts Drives: like a granny. Join Date: Jan 2010 Location: Manhatan iTrader: (1)	the noise is from the wastegate position of the cold start. __________________ 2011 Frozen Black/Fox Red E90 M3 650+WHP G-Power Supercharged First DCT to Manual Conversion Worldwide KW CS, BBS RI-A, BW Headers, Snow 2.5
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04-08-2016, 01:05 PM	#13
AK. Lieutenant 138 Rep 592 Posts Drives: E90 M3/E92 M3 ZCP Join Date: Jan 2015 Location: California iTrader: (3) Garage List 2010 E90 335i [10.00]	You want that sound? Straight pipe.
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