[Mr. 5]

Anyone with an AT that makes their exhaust sound louder will drone.
Keep the exhaust in a lower gear and it won't drone.

[shifterboy45]

cold start reminds me of starting a Evinrude outboard motor -- hehe wont win you any friends 7am in the morning

but wait 45sec to a min, and all is quiet

[shifterboy45]

Originally Posted by Mr. 5

Anyone with an AT that makes their exhaust sound louder will drone.
Keep the exhaust in a lower gear and it won't drone.

could you bring me up to speed on that.. cuz i dont understand what you're saying

the two major diffences in either car is
1) transmission final drive ratio
2) differential drive ratio

so are you saying these two things contribute to drone?

or is there something that im missing ?

[jblackwell]

Originally Posted by Mr. 5

Anyone with an AT that makes their exhaust sound louder will drone.
Keep the exhaust in a lower gear and it won't drone.

I have absolutely no drone with my new setup on my A/T e90.

No cats at all.

[Tee212]

I guess we all have our own interpretation of "drone"

[acnhdernegw]

Originally Posted by Tee212

Thanks for the feedback, cause of your complaint i will forget about buying a perf exh. I was scared of the drone and would be totally embarrassed if i had passengers. They will be thinking "why is your car soo loud? how old are you" I cant deal with that anymore lol.

Hey Tee212
i like mine so far .. first i thought there may be drone for the PE exhaust but after drove my friend's e90 with AE exhaust. mine is perfect! i see you are from Riverside let me know if you wanna hear mine

[Belarus]

Originally Posted by Saigon

any exhaust drones, even OEM. I can hear my golf-tee mod drone as well

+1 minimum drone with DPs + golf-tee.

[Belarus]

Originally Posted by acnhdernegw

Hey Tee212
i like mine so far .. first i thought there may be drone for the PE exhaust but after drove my friend's e90 with AE exhaust. mine is perfect! i see you are from Riverside let me know if you wanna hear mine

Had drone between 1700-1800 RPMs with AE + AR DPs.

[TheRox]

Originally Posted by cstavaru

No drone for me. I think yours is not installed correctly and it possibly hits the heat shield in some places. Go back to the dealer and have him inspect the exhaust.

Thats what I wanted to know...there is SERIOUS drone...I mean I drove 5 hours and had a headache...I couldn't drive in 6th gear because of the annoying low-frequency bass-like drone with my foot slightly on the gas just cruising...nothing fancy?

Is that normal?

Dealer messed it up eh...i'll have them look at it in August.

Golf-tee drone is damn annoying on the highway too, thats why I bought he PE...so I'm assuming it is not installed correctly. On a sidenote, this PE makes the car feels more responsive (6MT...almost as if there is less lag), might just be psychological though.

[Zero.7]

Originally Posted by TheRox

Thats what I wanted to know...there is SERIOUS drone...I mean I drove 5 hours and had a headache...I couldn't drive in 6th gear because of the annoying low-frequency bass-like drone with my foot slightly on the gas just cruising...nothing fancy?

Is that normal?

Dealer messed it up eh...i'll have them look at it in August.

Golf-tee drone is damn annoying on the highway too, thats why I bought he PE...so I'm assuming it is not installed correctly.

Yeah. There must be something wrong! If your stock exhaust didn't bother you, then the PE really shouldn't either. The PE definitely growls when the RPM increases, but very tamed IMO when cruising or at idle (after warm up).

I can't say enough good things about the BMW PE. I am definitely not into the really loud and obnoxious exhausts either. The PE is all win IMO.

[Dackz]

No drone on my setup, I do know just after the install things were noisier, but its an exhaust, it was supposed to be.

I dont think its a drone, the exhaust is just more noticeable, and I think it sounds perfect.

[Ilma]

Originally Posted by Saigon

any exhaust drones, even OEM. I can hear my golf-tee mod drone as well

Yup......stock exhaust here with golf tee mod and I get some drone in 6th gear cruising at 2K rpms or so.

A little bit annoying at times, but not that much.

Totally worth it and totally reversible.

[nood1es]

Drone? Turn the volume up higher than a whisper and you're golden. Seriously I think this exhaust is quiet as crap. Thank god I didn't buy it out of pocket, was comp'd from dealer due to downtime. Complete waste of $ IMHO, I think ppl who say it was best $ they spent on a car mod is lying to themselves(IMHO AGAIN). I mean start up it sounds nice, after 20 seconds it's gone. BTW, any1 wanna trade a bmw perf for an ae exhaust? Or buy my bmw perf exhaust for an e90. Had it for only 1k miles.

[AppleEater]

Originally Posted by TheRox

Just got mine...it has drone on the highway esp in the 2000-3000 rpm range. Anyone else notice this?

Otherwise, the exhaust system is very good...a little loud still.

Mine drones in 6th gear at low rpms as well, it just isn't that bad.

[645Nm]

No drone with mine & have catless DPs

[bimmertt]

Originally Posted by Tee212

I guess we all have our own interpretation of "drone"

if I can hear my stock exhaust drone at times, I do not see how the PE does not have any drone at all...

[shifterboy45]

could this be an interpretation problem --

if someone could, please define exhaust drone from a technical standpoint,
and if available -- the causes for it (droning)

this may help me understand if indeed my car is making a droning noise, and i am not aware of it.

TIA

[supahdave]

Check all the bolts. Once it heat cycles a few times, it will need tightening. Also make sure the clamp is on between the mufflers.

[rbaldwin28]

Originally Posted by nood1es

Drone? Turn the volume up higher than a whisper and you're golden. Seriously I think this exhaust is quiet as crap. Thank god I didn't buy it out of pocket, was comp'd from dealer due to downtime. Complete waste of $ IMHO, I think ppl who say it was best $ they spent on a car mod is lying to themselves(IMHO AGAIN). I mean start up it sounds nice, after 20 seconds it's gone. BTW, any1 wanna trade a bmw perf for an ae exhaust? Or buy my bmw perf exhaust for an e90. Had it for only 1k miles.

I have AE performance and 6AT and it sounds great. I would like to hear the BMW and then decide whats best. I think most system will drone in certain situations for example when I am in D my center console in the back rattles from the drone so I keep it open but when I shift to DS it doesn't drone or vibrate any more. I have the OE exhaust leaning against the wall in my garage because I have not figured out what to do with it since I don't know what emmissions problems I'll run into with out secondary cats.

[Darnlaw10]

I wanted to chime in on this issue. I just had the Performance Power Kit and Performance Exhaust installed last week, and I experienced the same problem. I had researched the exhaust to death and everyone was saying no drone, so I bought it...and then experienced some pretty serious drone at 2000-3000 RPM. It really made starts from a stop annoying and cruising from65-85mph was bad. It even seemed to be worse with the radio on, because it resonated above the radio and sounded like when you roll only one window down and your ears seem to get that wierd noise that almost sucks the ear in and out! I figured something was wrong, but I drove it for 500 miles and then took it back to the dealer this week for them to retighten all of the exhaust. I got it back yesterday and now am very happy and see why the other posts were all favorable. It is deeper than stock but no longer has the annoying drone. Now I am enjoying the set up!! I am sure that your clamps and connectors are loose and causing your drone. Take it in before August...you will be glad you did. There for a few days I tried to feather it to avoid the drone, but now that is fixed I seem to be driving WOT and grinning from ear to ear!!

[TheRox]

Originally Posted by Darnlaw10

I wanted to chime in on this issue. I just had the Performance Power Kit and Performance Exhaust installed last week, and I experienced the same problem. I had researched the exhaust to death and everyone was saying no drone, so I bought it...and then experienced some pretty serious drone at 2000-3000 RPM. It really made starts from a stop annoying and cruising from65-85mph was bad. It even seemed to be worse with the radio on, because it resonated above the radio and sounded like when you roll only one window down and your ears seem to get that wierd noise that almost sucks the ear in and out! I figured something was wrong, but I drove it for 500 miles and then took it back to the dealer this week for them to retighten all of the exhaust. I got it back yesterday and now am very happy and see why the other posts were all favorable. It is deeper than stock but no longer has the annoying drone. Now I am enjoying the set up!! I am sure that your clamps and connectors are loose and causing your drone. Take it in before August...you will be glad you did. There for a few days I tried to feather it to avoid the drone, but now that is fixed I seem to be driving WOT and grinning from ear to ear!!

thx man, i'm pretty sure this is the issue; the exhaust itself is beaut and i love it! esp with 6MT
t

[BMCoupe_782]

I'm getting my Performance Exhaust installed today - hopefully, I won't have this issue.