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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > Exhaust Gurgle... Tune issue/PE issue/ or normal?



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      10-26-2013, 07:39 PM   #1
Ghoste90
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Exhaust Gurgle... Tune issue/PE issue/ or normal?

I come from a FI background or either stock plain jane vehciles. This a 328 with PE/ PI / Stage 2 AA . On Decel / low speeds exhaust makes a gurgle, albeit not very loud but its there. To me it signals unburn fuel ie tune issue... but hey it could be normal as well. Just wanted to hear your thoughts... thanks


Dont know if this matters .. but I have 3 stage sitting in the garage that should be going on in the week....
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      10-27-2013, 11:20 AM   #2
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The gurgle is supposed to be there. I have an 08 328 N51 (which has a 3 stage intake stock) and I have PE, PI and AA stage 2 and my exhaust gurgles loud especially from a cold start. It sounds good imo
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      10-27-2013, 11:52 AM   #3
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Quote:
Originally Posted by Teeeg28 View Post
The gurgle is supposed to be there. I have an 08 328 N51 (which has a 3 stage intake stock) and I have PE, PI and AA stage 2 and my exhaust gurgles loud especially from a cold start. It sounds good imo
Thanks for taking the time to reply....as long as others have it going on as well I'll chalk it up as normal.
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      10-27-2013, 01:16 PM   #4
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I have the n51 with PE and no tune. It also gurgles and pops at low speeds. Love that sound!
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      10-27-2013, 10:39 PM   #5
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lol I deliberately downshift at low speeds just to hear the gurgle. It gives me boners.
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      10-27-2013, 11:31 PM   #6
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Originally Posted by Kalidian View Post
lol I deliberately downshift at low speeds just to hear the gurgle. It gives me boners.
TMI

I have eisenmann and it gurgles during downshifts. I too enjoy the sound albeit not as much as kalidian
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      10-28-2013, 08:51 AM   #7
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Why wouldn't you want that gurgle it's amazing! I'd gladly lose unburned gas to hear that
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      10-28-2013, 08:56 AM   #8
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Mine pops quite a bit less now with the stg 2 tune, I imagine it leaned out a bit therefore less unburnt fuel hitting hot exhausts.
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      10-28-2013, 09:07 AM   #9
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      10-31-2013, 11:45 PM   #10
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i have a secondary cat delete and mine very loud sometimes. try going down a hill in second totally off the throttle, then tapping it quickly.. should make some nice noises haha
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      11-02-2013, 06:46 PM   #11
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Quote:
Originally Posted by Ghoste90 View Post
I come from a FI background or either stock plain jane vehciles. This a 328 with PE/ PI / Stage 2 AA . On Decel / low speeds exhaust makes a gurgle, albeit not very loud but its there. To me it signals unburn fuel ie tune issue... but hey it could be normal as well. Just wanted to hear your thoughts... thanks


Don't know if this matters .. but I have 3 stage sitting in the garage that should be going on in the week....
Yep, that's normal, it'll pop too on decel. Google/Bing overrun or deceleration fueling.
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