BMW 128i

Captisock · 12-08-2011, 09:37 PM

Hi everyone,

I drive a BMW 128i and am not sure if the car has an upgraded exhaust or not. It sounds pretty loud already. Is there any way to find that out?

Thanks!

CentralPA E82 · 12-08-2011, 10:08 PM

It could be the performance exhaust. Are the tips staggered?

Greenkirby21 · 12-08-2011, 10:30 PM

take pics of it : ), or look underneath is and see if there is any shiny stainless steel or anything non BMW xD

amancuso · 12-09-2011, 06:46 AM

Despite what most on this forum think, our cars sound pretty sweet from the factory compared to other cars in our class.

x97Melbourne · 12-09-2011, 06:54 AM

doubt it -- you would know.

AW128i · 12-09-2011, 08:17 AM

Yes, the 1-series exhaust is much more pronounced then say, the 3-series. Whenever my car is at the dealer and they pull it up to the door, I can always hear it coming. Not so with the 3-series loaner cars they have.

DriveHard · 12-09-2011, 08:30 AM

If its a BMW Performance exhaust there will not be a Vacuum solenoid attached to the left side ( drivers side) exhast tip..

Just look underneath ..

and yes they are some what pronounced stock from the factory.

Captisock · 12-09-2011, 11:46 AM

Here's a picture of the exhaust. Do these pictures help?

Hops128i · 12-09-2011, 12:16 PM

that looks like the stock exhaust to me with the thick rounded tip ends. The stock exhaust isn't bad. but the n52 deserves some kind of performance exhaust imho

Greenkirby21 · 12-09-2011, 12:56 PM

looks normal. is the car used? Maybe they did the solenoid hack on it : )

amancuso · 12-09-2011, 04:38 PM

Stock!

debadgedbmw1 · 12-11-2011, 08:29 AM

Your right th factory exhaust was great compared to other vehicles but did not do it for me. The sound difference is certainly noticeable, that looks stock.

JimD · 12-11-2011, 01:14 PM

I measured my stock 128i exhaust both before and after the golf tee mod. It is significantly louder after startup when cold. It quiets down when warmed up. I wish it stayed about like it is cold. Golf tee made it even louder cold and didn't do much hot.

You could have the golf tee mod. If you do not know what it is, try a search.

Jim

DARK PHX · 12-12-2011, 07:18 AM

They could have done the golf tee mod. It does make it rumble a bit louder.

MikeinAlexandria · 12-12-2011, 09:51 AM

Definitely stock. As mentioned, you might have the golf tee mod. What this does is force the secondary exit pipe open, and it has less baffling. Normally, the exhaust only uses one exit (at lower rpms) In spite of that, it sounds ok when you rev it past 4000 rpm. But the BMW Performance exhaust sounds great at all rpms! It has been the single mod that brings the most grins both to myself, friends and nephews.

12-08-2011, 09:37 PM	#1
Captisock Enlisted Member 14 Rep 44 Posts Drives: Metallic Black 128i Coupe 6MT Join Date: Aug 2011 Location: North America iTrader: (0)	BMW 128i - Stock exhaust? Hi everyone, I drive a BMW 128i and am not sure if the car has an upgraded exhaust or not. It sounds pretty loud already. Is there any way to find that out? Thanks!
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12-08-2011, 10:08 PM	#2
CentralPA E82 Rookie 7 Rep 264 Posts Drives: 2009 128i Join Date: Apr 2010 Location: New Cumberland, PA iTrader: (1)	It could be the performance exhaust. Are the tips staggered?
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12-08-2011, 10:30 PM	#3
Greenkirby21 Vrooom :) 313 Rep 2,602 Posts Drives: C7 Stringray Join Date: Jun 2010 Location: Dream Land iTrader: (1)	take pics of it : ), or look underneath is and see if there is any shiny stainless steel or anything non BMW xD __________________ 2014 C7 Corvette Stringray - Laguna Blue - NPP Exhaust - Competition Seats
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12-09-2011, 06:46 AM	#4
amancuso Lieutenant Colonel 724 Rep 1,756 Posts Drives: 330it, 428ix, 430i Join Date: Oct 2008 Location: Lawrenceville, GA iTrader: (1)	Despite what most on this forum think, our cars sound pretty sweet from the factory compared to other cars in our class. __________________ 2016 428ix, r, 2018 430iC, 2018 330it
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12-09-2011, 06:54 AM	#5
x97Melbourne Molar World 47 Rep 916 Posts Drives: 2016 435i Coupe Join Date: Apr 2008 Location: Florida iTrader: (0)	doubt it -- you would know. __________________ Current: 2016 435i Coupe Previous: 2014 335i Sedan; 2013 328i Cv, 2011 335i Sedan Gone But Not Forgotten: 2008 135i Convertible (my favorite)
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12-09-2011, 08:17 AM	#6
AW128i Major 44 Rep 1,003 Posts Drives: E82 N51 Join Date: Nov 2010 Location: Southeastern, PA iTrader: (1)	Yes, the 1-series exhaust is much more pronounced then say, the 3-series. Whenever my car is at the dealer and they pull it up to the door, I can always hear it coming. Not so with the 3-series loaner cars they have.
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12-09-2011, 08:30 AM	#7
DriveHard Colonel 115 Rep 1,998 Posts Drives: X1 and R58 JCW Join Date: Aug 2010 Location: Long Island iTrader: (0)	If its a BMW Performance exhaust there will not be a Vacuum solenoid attached to the left side ( drivers side) exhast tip.. Just look underneath .. and yes they are some what pronounced stock from the factory. __________________ X1, R58 JCW, M2 in my future if planets align
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12-09-2011, 11:46 AM	#8
Captisock Enlisted Member 14 Rep 44 Posts Drives: Metallic Black 128i Coupe 6MT Join Date: Aug 2011 Location: North America iTrader: (0)	Here's a picture of the exhaust. Do these pictures help? Attached Images
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12-09-2011, 12:16 PM	#9
Hops128i Captain 71 Rep 675 Posts Drives: 2010 128i, manual, sport pkg Join Date: Aug 2010 Location: Silver Spring, Maryland iTrader: (0)	that looks like the stock exhaust to me with the thick rounded tip ends. The stock exhaust isn't bad. but the n52 deserves some kind of performance exhaust imho
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12-09-2011, 12:56 PM	#10
Greenkirby21 Vrooom :) 313 Rep 2,602 Posts Drives: C7 Stringray Join Date: Jun 2010 Location: Dream Land iTrader: (1)	looks normal. is the car used? Maybe they did the solenoid hack on it : ) __________________ 2014 C7 Corvette Stringray - Laguna Blue - NPP Exhaust - Competition Seats
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12-09-2011, 04:38 PM	#11
amancuso Lieutenant Colonel 724 Rep 1,756 Posts Drives: 330it, 428ix, 430i Join Date: Oct 2008 Location: Lawrenceville, GA iTrader: (1)	Stock! __________________ 2016 428ix, r, 2018 430iC, 2018 330it
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12-11-2011, 08:29 AM	#12
debadgedbmw1 BMW: intake,exhaust,strut bar,18''M1styl,CFspoiler 4 Rep 102 Posts Drives: 09 128i Join Date: Aug 2011 Location: ontario iTrader: (1)	Pe exhaust Your right th factory exhaust was great compared to other vehicles but did not do it for me. The sound difference is certainly noticeable, that looks stock.
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12-11-2011, 01:14 PM	#13
JimD Brigadier General 368 Rep 3,547 Posts Drives: 128i convertible Join Date: Apr 2009 Location: Lexington, SC iTrader: (0)	I measured my stock 128i exhaust both before and after the golf tee mod. It is significantly louder after startup when cold. It quiets down when warmed up. I wish it stayed about like it is cold. Golf tee made it even louder cold and didn't do much hot. You could have the golf tee mod. If you do not know what it is, try a search. Jim __________________ 128i Convertible, MT, Alpine White, Black Top, Taupe Leatherette, Walnut, Sport Ordered 5/22/09, Completed 6/4/09, At Port 6/9/09, On the Georgia Highway 6/13/09, Ship Arrived Charleston 6/24/09 at 10pm, PCD 7/21/09
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12-12-2011, 07:18 AM	#14
DARK PHX Private 7 Rep 98 Posts Drives: 2009 e82 135i Join Date: Nov 2011 Location: Arlington, VA iTrader: (0) Garage List 2009 135i [0.00]	They could have done the golf tee mod. It does make it rumble a bit louder. __________________ 2009 BSM with Coral Red 135i \| Sport \| HiFi \| Navi \| 30% Tint \| BMW Performance Grills \| Golf tee mod
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12-12-2011, 09:51 AM	#15
MikeinAlexandria Lieutenant 44 Rep 567 Posts Drives: 128i M Sport Convertible Join Date: Aug 2010 Location: Alexandria, VA iTrader: (0)	Definitely stock. As mentioned, you might have the golf tee mod. What this does is force the secondary exit pipe open, and it has less baffling. Normally, the exhaust only uses one exit (at lower rpms) In spite of that, it sounds ok when you rev it past 4000 rpm. But the BMW Performance exhaust sounds great at all rpms! It has been the single mod that brings the most grins both to myself, friends and nephews.
	Appreciate 0 Quote