128i Golf Tee Mod before and after!

Jophy · 01-09-2012, 10:37 PM

I recently did the famous "golf tee mod" on my 2012 128i. The engine is completely stock. I used a zip tie, and completed it in under 5 minutes! The sound to me is only really noticeable when driving and RPMs are below 3k. I would really recommend this mod to anybody in a 1 series looking for a little bit more sound from their exhaust!

Here is a before and after I recorded:

szcyxzh · 01-09-2012, 11:19 PM

cheap to keep rev under 3k......

MJA · 01-11-2012, 09:18 PM

Whoa...how big is your garage? Looks much wider than a 2 car.

MPBK · 01-11-2012, 09:25 PM

I don't see a difference.

SilverII · 01-11-2012, 09:31 PM

very subtle

Greenkirby21 · 01-11-2012, 11:17 PM

cool. thats weird you only hear it over 3k. The flaps were design to cover the car up until around 2.5k, then they open at 2.5k. You should be hearing a difference from 0-2.5k because the flaps are now open instead of closed xD.

Satalite · 01-12-2012, 12:18 AM

Sounds good!

jbenington86 · 01-12-2012, 05:39 AM

When I did my golf tee mod I noticed a difference at idle.... I noticed a subtle difference but it wasn't until a few days later. I started the engine and realized I needed to get something out of my trunk or put something in (can't remember exactly) but when I got behind the car it just had this extremely deep sound. Not like you find on a V8 with straight pipes where its ungodly loud. Just a very low frequency sound wave. It so hard to describe almost like a bass tester on some really good speakers at a very low frequency. Not loud but felt like you brain was being bounced off of the walls inside your skull.

I really want to get a brand new 128i but I just paid mine off before christmas. Merry Christmas to myself.

Plus its a year 1 of the 1 cant get another one of those brand new.

alvitdk · 01-21-2012, 06:06 AM

I guess everybody has a different hearing and noise interpretation. I did the mod and the difference in idle and up to 3000rpm's are huge. I took my daughter shopping a couple days later, and she said "I love the sound of your car, I never noticed that before". It's definitely a different sound, nice low humming at idle and some more low frequency up to about 3krpm.
Anyway, I used a zip-tie and love it.

s2pidfda · 03-20-2012, 04:46 PM

how do you do this mod?

Jophy · 03-21-2012, 08:56 PM

Quote:

Originally Posted by s2pidfda

how do you do this mod?

There is a little black hose vacuum tube next to the exhaust pipes on the rear drivers side. You simply take a zip-tie and pinch it shut, so that nothing can pass through it. It's very simple! Here is the guide which will explain it all much clearer: http://www.1addicts.com/forums/showt...light=golf+tee

andrey_gta · 03-23-2012, 05:22 PM

Did this today with the Zip tie.

Noticed that there is a deeper rumble in the low revs. Kinda nice as i though the stock was too low. Before, with windows down I would hear the exhaust just before the wind would over power it. Now, I feel the rumble in the seat and hear it as well

_Ryan_ · 03-24-2012, 06:10 AM

I did it today then reversed it.
Waste of time!

Felt like it lost a little bottom end(would need a dyno run back to back to prove it), sound got worse(annoying bass to it and annoying bassy noise on lift off/decel, got boomy etc).

I do not recommend this mod. I'll get a MMW CSv2 or BMWP exhaust.

01-09-2012, 10:37 PM	#1
Jophy Private First Class 62 Rep 119 Posts Drives: 2020 M2C Join Date: Dec 2011 Location: Denver, CO iTrader: (0)	128i Golf Tee Mod before and after! I recently did the famous "golf tee mod" on my 2012 128i. The engine is completely stock. I used a zip tie, and completed it in under 5 minutes! The sound to me is only really noticeable when driving and RPMs are below 3k. I would really recommend this mod to anybody in a 1 series looking for a little bit more sound from their exhaust! Here is a before and after I recorded: Last edited by Jophy; 02-02-2012 at 06:09 PM..
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01-09-2012, 11:19 PM	#2
szcyxzh First Lieutenant 19 Rep 399 Posts Drives: 128I Join Date: Jul 2011 Location: Orlando, FL iTrader: (2)	cheap to keep rev under 3k...... __________________ 128 w/ 6MT, SSK, CDV DEL, FSB, TIM YOYO, THAT'S IT.
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01-11-2012, 09:18 PM	#3
MJA New Member 0 Rep 22 Posts Drives: Join Date: Oct 2007 iTrader: (0)	Whoa...how big is your garage? Looks much wider than a 2 car. __________________ The One: 2012 135i coupe /// Le Mans Blue, Oyster gray boston leather /// M Sport /// Premium /// 6mt The Winter beater: 1997 Volvo 850 // Emerald Green // cassette player // 15" steel wheels and snow tires
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01-11-2012, 09:25 PM	#4
MPBK Everyday I'm shuffling 449 Rep 1,098 Posts Drives: '12 SG 135i DCT; '18 MG M2 DCT Join Date: Sep 2011 Location: USA iTrader: (0)	I don't see a difference.
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01-11-2012, 09:31 PM	#5
SilverII Colonel 40 Rep 2,334 Posts Drives: '11 335IS Join Date: Jun 2010 Location: DFW iTrader: (0) Garage List 2011 BMW 335IS [9.66]	very subtle
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01-11-2012, 11:17 PM	#6
Greenkirby21 Vrooom :) 313 Rep 2,602 Posts Drives: C7 Stringray Join Date: Jun 2010 Location: Dream Land iTrader: (1)	cool. thats weird you only hear it over 3k. The flaps were design to cover the car up until around 2.5k, then they open at 2.5k. You should be hearing a difference from 0-2.5k because the flaps are now open instead of closed xD. __________________ 2014 C7 Corvette Stringray - Laguna Blue - NPP Exhaust - Competition Seats
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01-12-2012, 12:18 AM	#7
Satalite Colonel 166 Rep 2,926 Posts Drives: 128i Join Date: Dec 2010 Location: Georgia iTrader: (9) Garage List 2009 128i [10.00]	Sounds good! __________________
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01-12-2012, 05:39 AM	#8
jbenington86 Major 58 Rep 1,201 Posts Drives: 2015 M235i, 2017 Tundra Join Date: May 2008 Location: TX iTrader: (0) Garage List 2015 M235i [0.00] 2008 128i [0.00]	When I did my golf tee mod I noticed a difference at idle.... I noticed a subtle difference but it wasn't until a few days later. I started the engine and realized I needed to get something out of my trunk or put something in (can't remember exactly) but when I got behind the car it just had this extremely deep sound. Not like you find on a V8 with straight pipes where its ungodly loud. Just a very low frequency sound wave. It so hard to describe almost like a bass tester on some really good speakers at a very low frequency. Not loud but felt like you brain was being bounced off of the walls inside your skull. I really want to get a brand new 128i but I just paid mine off before christmas. Merry Christmas to myself. Plus its a year 1 of the 1 cant get another one of those brand new.
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01-21-2012, 06:06 AM	#9
alvitdk Lieutenant 245 Rep 480 Posts Drives: 2023 BMW Z4 M40i Join Date: Nov 2011 Location: Texas iTrader: (2) Garage List 2023 BMW Z4 M40i [7.50] 2022 Nissan Frontie ... [0.00] 2023 Tesla Model 3 RWD [0.00]	I guess everybody has a different hearing and noise interpretation. I did the mod and the difference in idle and up to 3000rpm's are huge. I took my daughter shopping a couple days later, and she said "I love the sound of your car, I never noticed that before". It's definitely a different sound, nice low humming at idle and some more low frequency up to about 3krpm. Anyway, I used a zip-tie and love it. __________________ --------------------------------------------------------------- 23' BMW Z4 M40i: Also Drive: 23' Tesla Model 3 Also Drive: 22' Nissan Frontier Pro 4X Waiting for 23' BMW Z4 M40i:
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03-20-2012, 04:46 PM	#10
s2pidfda Henry 9 Rep 57 Posts Drives: 2017 m2 longbeach blue Join Date: Jan 2012 Location: Toronto iTrader: (0)	how do you do this mod?
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03-23-2012, 05:22 PM	#12
andrey_gta Brigadier General 298 Rep 4,040 Posts Drives: 130i coupé ;) Join Date: Nov 2011 Location: Bimmerpost iTrader: (1) Garage List 2008 BMW 128i [10.00]	Did this today with the Zip tie. Noticed that there is a deeper rumble in the low revs. Kinda nice as i though the stock was too low. Before, with windows down I would hear the exhaust just before the wind would over power it. Now, I feel the rumble in the seat and hear it as well __________________ 128i Sport 6MT converted to Euro 130i spec, 3.73 diff, tuned by evolve ~220 whp 207 wtq(ft-lb) SAE In-progress: //M front arm, M3 rack, e36M lip Wishlist: Coils, n55 mnts, headers, LSD, e60 finn diff "The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is Last edited by andrey_gta; 03-23-2012 at 07:32 PM..
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03-24-2012, 06:10 AM	#13
_Ryan_ Captain 59 Rep 741 Posts Drives: E87 130i Join Date: Jan 2012 Location: Melbourne, AU iTrader: (0) Garage List 2005 BMW 130i [5.24]	I did it today then reversed it. Waste of time! Felt like it lost a little bottom end(would need a dyno run back to back to prove it), sound got worse(annoying bass to it and annoying bassy noise on lift off/decel, got boomy etc). I do not recommend this mod. I'll get a MMW CSv2 or BMWP exhaust.
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