BMW Performance Exhaust Regrets?

TT1351 · 02-01-2009, 01:25 PM

Quote:

Originally Posted by matt

that doesnt work. think about the bearings. if the whole exhaust is to far in the back, where u fix it?

I think by bearings you mean the rubber bushings (hangers). Your first clue if the pipes were cut too long is that the hangers will be on a slant towards the back of the car. They are designed to support the weight of the exhaust by hanging straight down. They slip over metal mounting points with a flange at the end to prevent them from slipping off, one secures the bushing at the top, the other mounts to the exhaust, in other words both mounting points should be fairly close to verticle.
Fran

PrimoM3 · 02-01-2009, 03:37 PM

Does anyone have pictures of the exhaust installed "properly" on a 135 with the stock diffusor? I have yet to see one where the pipes don't stick out...

CoolToolGuy · 02-01-2009, 07:14 PM

Quote:

Originally Posted by Primo135

Does anyone have pictures of the exhaust installed "properly" on a 135 with the stock diffusor? I have yet to see one where the pipes don't stick out...

No pictures, but I was looking at mine since this thread started. I have the stock diffuser, and they do stick past it a little, but the tips come out to different lengths, and if you look straight down from above the car they come out just to the bumper, and sort of follow the curve of the bumper at that point. I like it there.

As for the interior resonance at 1800-2200, its not that its so bad, but just an odd place to have it, since the car (with Steptronic) spends a lot of time in that range.

I would never trim the tips without a way to treat the ends - as mentioned, the chrome goes away on the edge, and is subject to rust.

Have Fun,
Rick

jibaholic101 · 02-01-2009, 07:23 PM

Quote:

Originally Posted by esscolab

Gonna get the Hartge quads fitted in a couple of weeks, always thought it looked unbalanced with the pipes on the left. If the 135i can beat the M3 then it deserves them in my opinion.

lets get some sound clips too along with pics!

penny · 02-01-2009, 10:34 PM

Performance exhaust sticking out a bit.

ChrisK · 02-02-2009, 10:36 AM

I think I have hit a wall with my performance exhaust decision. I prefer the black stock tips, and I don't want the drone.

Dang... I am getting old!

Call · 02-02-2009, 11:42 AM

Quote:

Originally Posted by ChrisK

I think I have hit a wall with my performance exhaust decision. I prefer the black stock tips, and I don't want the drone.

Dang... I am getting old!

It has to be something other than age...I'm 60 and think the Performance Exhaust is absolutely perfect. At first I really hated to see the black chrome tips go but I got over it. All I had ever seen was chrome tips before the ONE so no real big deal...unless you just want to be looking for a reason not to get the exhaust.

No exhaust will give you any real HP gain alone. If that's your sole reason for getting it then just keep the OEM. If you are not looking for a more aggressive sound then just keep the OEM.

I measured the tips on mine and found it extends 1" pass the diffuser. I prefer that length because it helps to keep the bump cleaner and for me it looks more aggressive. However, as others have said the pipe can be cut shorter with no issues for installation.

Regrets? I don't do regrets...life is just to short

Call

ChrisK · 02-02-2009, 12:43 PM

My friend is selling his Performance exhaust for $500. Nothing wrong with it, he is getting rid of his 135i. Local Chicago area only.

PM me If anyone is interested.

Chris

PrimoM3 · 02-02-2009, 01:17 PM

Quote:

Originally Posted by Call

I measured the tips on mine and found it extends 1" pass the diffuser. I prefer that length because it helps to keep the bump cleaner and for me it looks more aggressive. However, as others have said the pipe can be cut shorter with no issues for installation.

How does that compare to the photos above that penny posted? I think it would look nice if the end of the tips were .5" -.75" past the edge of the diffusor outlet.

TT1351 · 02-02-2009, 05:17 PM

Heres a pic of mine with CF diffuser
Fran

penny · 02-02-2009, 05:18 PM

^^ Man that's hot.

mikeo · 02-02-2009, 05:34 PM

Lookin' good, TT135I!

penny · 02-02-2009, 06:06 PM

TT1351, was your performance exhaust sticking out similar to mine?

Gogud · 02-02-2009, 06:26 PM

The exhaust is stainless, not chrome. Sheesh! It will not rust if cut. It seems as though no one looked up the DIY so here are pics of the Performance Exhaust with the stock tips and the stock diffuser.

rcracer_tx · 02-02-2009, 08:15 PM

Wow, that exhaust sticks out allot... I would expect better fitment from oem BMW parts....

TT1351 · 02-02-2009, 08:55 PM

Here is a side view of the car, sorry that the important part is heavily shaded. Anyway I think the exhaust fits perfectly on my car but the CF diffuser has a different contour then the stock one.
Fran

Call · 02-02-2009, 09:20 PM

Quote:

Originally Posted by Primo135

How does that compare to the photos above that penny posted? I think it would look nice if the end of the tips were .5" -.75" past the edge of the diffusor outlet.

Penny's lookes longer.

Call

penny · 02-02-2009, 10:01 PM

Rcracer_tx, these performance exhaust were meant to be used with the cf diffusor. The diffusor will tuck it much better... base on what I was told. That's how they get you to spend your money.

Quote:

Originally Posted by rcracer_tx

Wow, that exhaust sticks out allot... I would expect better fitment from oem BMW parts....

rcracer_tx · 02-02-2009, 10:28 PM

Quote:

Originally Posted by penny

Rcracer_tx, these performance exhaust were meant to be used with the cf diffusor. The diffusor will tuck it much better... base on what I was told. That's how they get you to spend your money.

LOL, that makes sense. I was wondering why it was sticking so far out...BMW wouldn't want to make it so you didn't buy the rear diffuser

penny · 02-02-2009, 10:59 PM

Wow! I just measured how far my exhaust sticks out from the diffusor (diffusor point right above tip).

drum roll....

1.75 inches.

matt · 02-03-2009, 01:53 AM

Quote:

Originally Posted by penny

Performance exhaust sticking out a bit.

penny · 02-03-2009, 07:29 AM

Matt, you ended up getting the p diffusor, eh? Looking good.

After seeing that I'm gonna have to take mine back to the shop and hack off an inch. Maybe its my installation that sticks out more than others. You think the local shop will charge me extra if they installed it a little longer than usual?

02-01-2009, 03:37 PM	#46
PrimoM3 Chemofski 54 Rep 1,295 Posts Drives: '13 X5M Join Date: Feb 2008 Location: West Coast, U.S. iTrader: (0)	Does anyone have pictures of the exhaust installed "properly" on a 135 with the stock diffusor? I have yet to see one where the pipes don't stick out... __________________ '13 Individual Frozen Brilliant White ///M3 Coupe Ordered 2/15/12 \| Euro Delivery on 9/21/12 \| U.S. Redelivery on 12/6/12 \| Motor Dead on 7/15/13 '13 Space Gray/Mugello Red X5///M Pavement Punisher \| Snow Muncher \| Family and Board Hauler \| Roadtripper
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02-01-2009, 10:34 PM	#49
penny Captain 43 Rep 829 Posts Drives: '08 135i (sold) Join Date: May 2008 Location: Las Colinas iTrader: (2)	Performance exhaust sticking out a bit. Attached Images __________________ '08 135i.
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02-02-2009, 10:36 AM	#50
ChrisK Major General 4449 Rep 7,594 Posts Drives: '19 M2C Join Date: Jun 2007 Location: Chicagoland iTrader: (7) Garage List 2019 BMW M2C [7.00] 2015 Porsche Macan S [0.00]	I think I have hit a wall with my performance exhaust decision. I prefer the black stock tips, and I don't want the drone. Dang... I am getting old! __________________ www.ReTuneTheDeTune.com 2019 M2 Competition (Sunset Orange)
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02-02-2009, 12:43 PM	#52
ChrisK Major General 4449 Rep 7,594 Posts Drives: '19 M2C Join Date: Jun 2007 Location: Chicagoland iTrader: (7) Garage List 2019 BMW M2C [7.00] 2015 Porsche Macan S [0.00]	My friend is selling his Performance exhaust for $500. Nothing wrong with it, he is getting rid of his 135i. Local Chicago area only. PM me If anyone is interested. Chris __________________ www.ReTuneTheDeTune.com 2019 M2 Competition (Sunset Orange)
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02-02-2009, 05:17 PM	#54
TT1351 Captain 508 Rep 929 Posts Drives: 135, GTS, E30 M3+ Join Date: Dec 2008 Location: Massachusetts iTrader: (2)	Heres a pic of mine with CF diffuser Fran Attached Images
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02-02-2009, 05:18 PM	#55
penny Captain 43 Rep 829 Posts Drives: '08 135i (sold) Join Date: May 2008 Location: Las Colinas iTrader: (2)	^^ Man that's hot. __________________ '08 135i.
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02-02-2009, 05:34 PM	#56
mikeo Santa Fe Concorso 103 Rep 2,984 Posts Drives: '11 M-sport 328i, '13 X1 28i Join Date: Jul 2007 Location: Santa Fe, NM iTrader: (3)	Lookin' good, TT135I!
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02-02-2009, 06:06 PM	#57
penny Captain 43 Rep 829 Posts Drives: '08 135i (sold) Join Date: May 2008 Location: Las Colinas iTrader: (2)	TT1351, was your performance exhaust sticking out similar to mine? __________________ '08 135i.
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02-02-2009, 06:26 PM	#58
Gogud Private 15 Rep 86 Posts Drives: Join Date: Oct 2008 iTrader: (0)	The exhaust is stainless, not chrome. Sheesh! It will not rust if cut. It seems as though no one looked up the DIY so here are pics of the Performance Exhaust with the stock tips and the stock diffuser. Attached Images
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02-02-2009, 08:15 PM	#59
rcracer_tx Banned 55 Rep 2,013 Posts Drives: BSM 135i Join Date: Apr 2008 Location: Texas iTrader: (0)	Wow, that exhaust sticks out allot... I would expect better fitment from oem BMW parts....
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02-02-2009, 08:55 PM	#60
TT1351 Captain 508 Rep 929 Posts Drives: 135, GTS, E30 M3+ Join Date: Dec 2008 Location: Massachusetts iTrader: (2)	Here is a side view of the car, sorry that the important part is heavily shaded. Anyway I think the exhaust fits perfectly on my car but the CF diffuser has a different contour then the stock one. Fran Attached Images
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02-02-2009, 10:59 PM	#64
penny Captain 43 Rep 829 Posts Drives: '08 135i (sold) Join Date: May 2008 Location: Las Colinas iTrader: (2)	Wow! I just measured how far my exhaust sticks out from the diffusor (diffusor point right above tip). drum roll.... 1.75 inches. __________________ '08 135i.
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02-03-2009, 07:29 AM	#66
penny Captain 43 Rep 829 Posts Drives: '08 135i (sold) Join Date: May 2008 Location: Las Colinas iTrader: (2)	Matt, you ended up getting the p diffusor, eh? Looking good. After seeing that I'm gonna have to take mine back to the shop and hack off an inch. Maybe its my installation that sticks out more than others. You think the local shop will charge me extra if they installed it a little longer than usual? __________________ '08 135i.
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