No golf-tee mod=more low down power? - BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)

135forthewin · 10-22-2008, 04:54 PM

So I did the golf-tee mod on my car a couple months back with a simple removable zip-tie and loved the added sound I got driving around town.
However, yesterday I decided to remove it just to see how it sounded without the mod. When I started the car up it was quieter, but when I got on it a bit a few minutes later, the car definitely felt faster!
So maybe I'm crazy, and I know people have asked techs who say it has no performance effects, but I challenge those with stock exhaust to try it out for themselves!

ronnyek · 10-22-2008, 04:57 PM

I'd be very supprised if it affected it at all... on a NA car, additional backpressure can help with tq etc off the line... however I dont beleive I've seen anything that supports backpressure after turbo is required at all.. (maybe a lack of experience, but I dont think so :iono

1mor · 10-22-2008, 07:13 PM

Every car always seems faster after you quiet it down a bit. It's all in your head. Nearly every car I've owned had aftermarket pipes installed. It always 'felt' fast when I took them off.

alpnwhite96 · 10-22-2008, 11:14 PM

i did the same thing to my car, and it does not feel faster in any way shape or form.

135forthewin · 10-23-2008, 08:52 PM

Quote:

Originally Posted by 1Mor

Every car always seems faster after you quiet it down a bit. It's all in your head. Nearly every car I've owned had aftermarket pipes installed. It always 'felt' fast when I took them off.

You're probably right, that makes sense. Well I'm going to keep the mod off for now, I'm enjoying the change and the exhaust sounds more refined (less rasp and burble).

I'll probably keep going back and forth in an attempt to draw my attention away from dropping $$$ into an exhaust system.

ronnyek · 10-23-2008, 09:45 PM

find somone who as bmw performance exhaust =) I unfortunately havent seen a single other 135i yet, let alone with exhaust, but can say even though I was hesitant to get bmw perfomace exhaust because it was known to not be as loud... Very very satisfied, very exotic sounding.

Alext · 10-24-2008, 01:30 AM

Turbocharged engines cars thrive off LESS backpressure. Period.

Less restrictions in the exhaust system the better...FREE FLOW ALL THE WAY!

So this means doing the mod could actually increase power.

frimmelnojerz · 10-24-2008, 01:47 AM

ouch.

10-22-2008, 04:54 PM	#1
135forthewin Lieutenant Drives: sideways Join Date: Oct 2008 Location: U.S. Posts: 544 iTrader: (0)	No golf-tee mod=more low down power? So I did the golf-tee mod on my car a couple months back with a simple removable zip-tie and loved the added sound I got driving around town. However, yesterday I decided to remove it just to see how it sounded without the mod. When I started the car up it was quieter, but when I got on it a bit a few minutes later, the car definitely felt faster! So maybe I'm crazy, and I know people have asked techs who say it has no performance effects, but I challenge those with stock exhaust to try it out for themselves!
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10-24-2008, 01:47 AM	#8
frimmelnojerz Captain Drives: Montego blue 135i Join Date: Jun 2008 Location: Bayonne, NJ Posts: 692 iTrader: (0)	ouch. __________________ 08' 135 in much need of some TLC. But after that... Watch out. AA/Berk/ER/UR/CP-e/Snow/ESS

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10-22-2008, 04:57 PM	#2
ronnyek Captain Drives: 2010 Evo MR Touring Join Date: Mar 2008 Location: space Posts: 682 iTrader: (1)	I'd be very supprised if it affected it at all... on a NA car, additional backpressure can help with tq etc off the line... however I dont beleive I've seen anything that supports backpressure after turbo is required at all.. (maybe a lack of experience, but I dont think so :iono

10-22-2008, 07:13 PM	#3
1mor Got Boost? Drives: 135 (Sold) Join Date: Nov 2006 Location: 818 Posts: 587 iTrader: (3)	Every car always seems faster after you quiet it down a bit. It's all in your head. Nearly every car I've owned had aftermarket pipes installed. It always 'felt' fast when I took them off.

10-22-2008, 11:14 PM	#4
alpnwhite96 Second Lieutenant Drives: 135i Join Date: Jun 2008 Location: Maryland Posts: 295 iTrader: (0)	i did the same thing to my car, and it does not feel faster in any way shape or form.

10-23-2008, 09:45 PM	#6
ronnyek Captain Drives: 2010 Evo MR Touring Join Date: Mar 2008 Location: space Posts: 682 iTrader: (1)	find somone who as bmw performance exhaust =) I unfortunately havent seen a single other 135i yet, let alone with exhaust, but can say even though I was hesitant to get bmw perfomace exhaust because it was known to not be as loud... Very very satisfied, very exotic sounding.

10-24-2008, 01:30 AM	#7
Alext Lieutenant Colonel Drives: B M W Join Date: Apr 2008 Location: Everest Posts: 1,898 iTrader: (2)	Turbocharged engines cars thrive off LESS backpressure. Period. Less restrictions in the exhaust system the better...FREE FLOW ALL THE WAY! So this means doing the mod could actually increase power.