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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > DIY Guides > DIY: 335i Exhaust Sound Mod. Better, and even easier than golf tee mod.



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      05-02-2013, 12:40 AM   #595
Haasman
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I have 93k miles since unplugging the the connector. Engine has had to be rebuilt 3 times! (Joke)

No problems what so ever. Love the sound!
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      05-02-2013, 01:44 PM   #596
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Thanks

Easiest mod i have ever done. Feels like you lose a little low end torque possibly? Just seat of your pants feeling though, no actual proof. Sounds better though!
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      05-18-2013, 12:23 PM   #597
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Quote:
Originally Posted by fventura03
just did this, took about 15 seconds, any confirmed issues from the dealership after doing this mod? like refusing warranty work?
Did this 1.5 years ago. I like the sound better than stock.

Been to various dealers 5 or 6 times for warranty issues. Either they haven't noticed, or don't care.
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      05-26-2013, 01:27 AM   #598
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i've tried searching although i couldnt find the right answer so i figured i'd try here first...my buddy has a 2013 335i coupe and he did this "mod" no problem, but i have a 2013 335i sedan and my car doesnt have the same compartment in the trunk that his does. or at least its not in the same place as his. Is this connector located in a different spot on the new body style sedan? or does it no longer exist on the new body style?
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      05-29-2013, 10:51 PM   #599
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Thumbs up

IF there was a note higher than 5, this one would take it hands down!

Did it and I am very satisfied! The sound is terrific!!

For the few of you that didn't noticed a change in the sound, maybe you unplugged the taillight instead

I also noticed that it does not hand for half a second when pressing the gas since I did the mod, before I would give it a third or half a pedal and got a half second until it kicks in and accelerate. But now, it's instant power no matter the throttle you give. The response is quicker at the throttle.

But maybe it's just me
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      05-30-2013, 02:32 PM   #600
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Thanks for the write-up OP.
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      06-08-2013, 03:23 AM   #601
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Hello all,

I can't seem to find any pics or videos or even comments discussing how to get to the wire you need to disconnect on a convertible....ive done this on a 4 door 335i but can't seem to easily access this on my 2013 335is convertible.....any help would be greatly appreciated.
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      06-17-2013, 12:23 PM   #602
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Did this the first day I picked up my 335i e92 (last week )

But a couple times after starting the car I got a brake light failure warning. After plugging the exhaust cable back in, it went away

Any idea what's going on? I'm going to try it again today but wanted to know if anyone had any suggestions
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      06-17-2013, 03:08 PM   #603
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Any before/after videos? or even just videos?
I have a 335is 2011, and i love the stock sound.

just curious
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      06-17-2013, 03:28 PM   #604
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Quote:
Originally Posted by derekwilkinson View Post
Did this the first day I picked up my 335i e92 (last week )

But a couple times after starting the car I got a brake light failure warning. After plugging the exhaust cable back in, it went away

Any idea what's going on? I'm going to try it again today but wanted to know if anyone had any suggestions
My only thought would be wrong cable disconnect? Might be best just to crawl under the car with a couple zip ties, crimp the vacuum line itself and apply two zip ties. It's a solution that's also easy to undo quickly.

But disconnect is is simple just make certain you've got the right cable.
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      06-17-2013, 06:17 PM   #605
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Brake light circuit failure on the E92 is a known issue, could it have just been pure coincidence?
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      06-17-2013, 10:58 PM   #606
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yayayer .
no problems so far, had it for few weeks now,
just a little louder at low rpms, no faults on dash, dunno about codes but seems fine
vrooommmm !
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      06-18-2013, 09:43 PM   #607
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Quote:
Originally Posted by raceyBMW View Post
Brake light circuit failure on the E92 is a known issue, could it have just been pure coincidence?
probably. it was happening when i plugged it back in. but it has only happened about 3 times and I have checked the lights and they are fine.
but I had a Saab before this so I am used to weird problems

so I unplugged the cable again
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      06-18-2013, 10:32 PM   #608
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thats interesting
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      06-19-2013, 12:21 AM   #609
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Just did this with the catless dps installed... altho i cant really hear a difference with the exhaust mayb due to the dps but the spooling is definitely better... sounds like i hav an aftermarket bov now imo...
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      06-19-2013, 09:28 AM   #610
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This was the first thing I did when I got the car, anybody on the fence about it should try it out
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      06-20-2013, 02:55 AM   #611
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Just picked up my used 09 335i m sport, and this was the first thing I tried cause it was free and super easy to do.

Yes like some others said, it was like 10% louder than stock at idle and low rpms, it was cool at first...

but the loss in low rpm torque was VERY noticeable for me and felt almost sluggish booting it off at the usual default stop lighted 2nd gear in sport-tronic mode.

The next day I plugged it back in, and the car gives me smiles again!! Even in 2nd gear from a stop!
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      06-20-2013, 02:03 PM   #612
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Quote:
Originally Posted by Beamernoob View Post
Just picked up my used 09 335i m sport, and this was the first thing I tried cause it was free and super easy to do.

Yes like some others said, it was like 10% louder than stock at idle and low rpms, it was cool at first...

but the loss in low rpm torque was VERY noticeable for me and felt almost sluggish booting it off at the usual default stop lighted 2nd gear in sport-tronic mode.

The next day I plugged it back in, and the car gives me smiles again!! Even in 2nd gear from a stop!
Loss in power? is this right???
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      06-20-2013, 08:34 PM   #613
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Quote:
Originally Posted by mex2309 View Post
Loss in power? is this right???
Nope... I am doing exactly the same time from stopped and it gives a better kick when passing. Low RPM torque is the same.

Im now looking at buying a JB4 to add some horses
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      06-24-2013, 07:37 PM   #614
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Hey guys. I disconnected my wire and I'm about to get my car inspected and if I recall correctly, doesn't this mod throw a shadow code or something? I was wondering if this will cause a problem with my inspection? Thanks.
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      06-24-2013, 08:54 PM   #615
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Did this today...noticed increase sound off the bat...What a crazy easy trick
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      06-26-2013, 11:47 PM   #616
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It does throw a shadow code, plug back in if you are concerned, but they won't say anything about it.
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