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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 > Loud but not loud enough



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      09-13-2012, 04:25 PM   #1
Gjm127
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Loud but not loud enough

Hey guys, I have a BMW Performance Exhaust (dualed-out) with a cat delete. You can see pictures in my garage.

It's very loud, louder than stock 335i and/or 335i with aftermarket exhaust IMO.

At 3k-4k rpm, the sound becomes an unbelievable high-pitched roar resembling a screaming V8.
I'm trying to find out a way I can have that same sound at 1k-2k rpm.

What can I do?
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      09-13-2012, 04:42 PM   #2
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Cheapest to paying solution.

1. DS mode
2. IF you haven't removed the resonator
3. Cone intake
4. Tune
5. Headers
6. Tune again
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      09-13-2012, 04:52 PM   #3
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remove the muffler perhaps? XD

btw, how your think about the de-cat, any midrange gain?
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      09-14-2012, 01:34 AM   #4
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Originally Posted by Route 16 View Post
Cheapest to paying solution.

1. DS mode
2. IF you haven't removed the resonator
3. Cone intake
4. Tune
5. Headers
6. Tune again
Headers is too much, I'm not gonna mess with the engine unless it's installing an intake. Cone intake and tunes you say?

How does that help the exhaust note?

While driving today I noticed the moment when the "heavenly" noise kicks in is at 3.2k rpm... I need that sound at 1-2k rpm !!
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      09-14-2012, 01:42 AM   #5
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Personally I have the OEM flat intake and after market cone intake, just the less restriction of air will make it deeper and I have straight pipes that are 3in from midpipe, y-pipe and eisenmann race muffler, makes my exhaust blow like from a straw (hollow), smaller pipes is like whistling from your lips (more high pitched).
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      09-14-2012, 01:48 AM   #6
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@ OP
Video of your exhaust sound please! i'm still debating if I should go dual or just stay with an oem look (dual tip).

@ Route 16
Your exhaust sounds awesome in person, when I heard it at Euro We Go it just made me want to put an exhaust on mines.
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      09-14-2012, 01:55 AM   #7
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Quote:
Originally Posted by JS-NA.E92 View Post
Your exhaust sounds awesome in person, when I heard it at Euro We Go it just made me want to put an exhaust on mines.
drive my car cuz it sounds different from the inside.
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      09-14-2012, 02:02 AM   #8
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Quote:
Originally Posted by Route 16 View Post
drive my car cuz it sounds different from the inside.
Does it really? I need to hear it one day, but is it because you hear the intake and exhaust at the same time inside the car?
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      09-14-2012, 02:09 AM   #9
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Quote:
Originally Posted by JS-NA.E92 View Post
Does it really? I need to hear it one day, but is it because you hear the intake and exhaust at the same time inside the car?
Nah just sounds quiet from where I'm sitting.
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      09-14-2012, 12:41 PM   #10
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Quote:
Originally Posted by Route 16 View Post
Personally I have the OEM flat intake and after market cone intake, just the less restriction of air will make it deeper and I have straight pipes that are 3in from midpipe, y-pipe and eisenmann race muffler, makes my exhaust blow like from a straw (hollow), smaller pipes is like whistling from your lips (more high pitched).
But I said I needed the high-pitched sound...
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      09-14-2012, 12:46 PM   #11
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At 1-2k rpm even my full eisenmann exhaust set up won't have that high pitch at low revs, it's only like what you experience 3k and above and WOT. IMO it might look weird at low revs, you want a race sound but aren't going fast.
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      09-17-2012, 04:43 AM   #12
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For higher pitched sounds? Like full on race system? I say maybe muffler delete? But with that lovely sound, comes annoying rasp and rattle :/ the cone intake might just create that sound you want. Yes headers are expensive to fab but it might be more worth it since you like that sound. Try buying from supersprint or mmw. The reason I also recommend the headers because it might just add the sound you're searching for at such low rpms. Not to mention a few extra horses and a full free flowing exhaust
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Originally Posted by The HACK View Post
I'm going to use a very simple analogy, I hope you'll understand.
Driving is like having sex.
It really is. You can read up all you want about how to please a woman, you can look at all the diagrams in the world, but just like the clitoris, you won't know what the hell an apex is before you actually find it.
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      09-17-2012, 10:56 AM   #13
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Quote:
Originally Posted by kiwi29 View Post
For higher pitched sounds? Like full on race system? I say maybe muffler delete? But with that lovely sound, comes annoying rasp and rattle :/ the cone intake might just create that sound you want. Yes headers are expensive to fab but it might be more worth it since you like that sound. Try buying from supersprint or mmw. The reason I also recommend the headers because it might just add the sound you're searching for at such low rpms. Not to mention a few extra horses and a full free flowing exhaust
I'll try the cone intake for now...
Which one do you recommend? How hard is the install? Labor cost?

I'm looking to sell my car next year, installing headers will lower the value of my car IMO.

Thanks for the advice!
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      09-17-2012, 12:33 PM   #14
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There's always the exhaust whistles
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      09-17-2012, 03:39 PM   #15
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Quote:
Originally Posted by Gjm127 View Post
I'll try the cone intake for now...
Which one do you recommend? How hard is the install? Labor cost?

I'm looking to sell my car next year, installing headers will lower the value of my car IMO.

Thanks for the advice!
For cone intakes, I say afe with the heat shield or maybe the sonomita (idk if its spelled correctly) they're both good from what I hear. I haven't heard anything about injen intakes but those are pretty good as well. You just buy it and it'll take you maybe 20 minutes to install (if its your first time) and its a DIY. You won't have to pay anyone to install it, its a fairly easy task. as for headers, you can always take them off and resell them. People love it but will hop on a used/ cheap set in a quickness. You'll get most of your money back and you can throw your stock headers, cats and exhaust back on like it was never used. The labor, I'm not sure. DIY and its free lol as for a shop, they're expensive...
Difficulty level: 1 being changing your spare - 10 doing a full motor swap alone
Task of installing cone intake: 3( with tools)
Task of installing headers: 8( without lift) 5 (with lift) * both including correct tools
Hope this helps
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Originally Posted by The HACK View Post
I'm going to use a very simple analogy, I hope you'll understand.
Driving is like having sex.
It really is. You can read up all you want about how to please a woman, you can look at all the diagrams in the world, but just like the clitoris, you won't know what the hell an apex is before you actually find it.
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      09-17-2012, 03:58 PM   #16
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Originally Posted by chaFT328i View Post
There's always the exhaust whistles
Whistle-tips go WhooWhoo!!
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      09-17-2012, 07:13 PM   #17
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Quote:
Originally Posted by kiwi29 View Post
For cone intakes, I say afe with the heat shield or maybe the sonomita (idk if its spelled correctly) they're both good from what I hear. I haven't heard anything about injen intakes but those are pretty good as well. You just buy it and it'll take you maybe 20 minutes to install (if its your first time) and its a DIY. You won't have to pay anyone to install it, its a fairly easy task. as for headers, you can always take them off and resell them. People love it but will hop on a used/ cheap set in a quickness. You'll get most of your money back and you can throw your stock headers, cats and exhaust back on like it was never used. The labor, I'm not sure. DIY and its free lol as for a shop, they're expensive...
Difficulty level: 1 being changing your spare - 10 doing a full motor swap alone
Task of installing cone intake: 3( with tools)
Task of installing headers: 8( without lift) 5 (with lift) * both including correct tools
Hope this helps
Perfect, thanks for the advice! I'll prolly start off with the cone and see what difference it makes first.
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      09-17-2012, 07:22 PM   #18
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Quote:
Originally Posted by Gjm127 View Post
Perfect, thanks for the advice! I'll prolly start off with the cone and see what difference it makes first.
No problem, btw, do you have a resonator delete as well?
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Quote:
Originally Posted by The HACK View Post
I'm going to use a very simple analogy, I hope you'll understand.
Driving is like having sex.
It really is. You can read up all you want about how to please a woman, you can look at all the diagrams in the world, but just like the clitoris, you won't know what the hell an apex is before you actually find it.
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      09-17-2012, 07:33 PM   #19
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Originally Posted by kiwi29 View Post
No problem, btw, do you have a resonator delete as well?
I have the BMW Performance Exhaust which automatically deletes the resonator.
I did the cat delete a couple months ago.

Basically I'm left with the muffler and that's it.
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      09-17-2012, 08:03 PM   #20
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Quote:
Originally Posted by Gjm127 View Post
I have the BMW Performance Exhaust which automatically deletes the resonator.
I did the cat delete a couple months ago.

Basically I'm left with the muffler and that's it.
Oh I always though the PE was like the eisennmann exhaust with a resonator. But that is good set up, do you know what size the piping is ?
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Quote:
Originally Posted by The HACK View Post
I'm going to use a very simple analogy, I hope you'll understand.
Driving is like having sex.
It really is. You can read up all you want about how to please a woman, you can look at all the diagrams in the world, but just like the clitoris, you won't know what the hell an apex is before you actually find it.
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      09-17-2012, 08:19 PM   #21
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Quote:
Originally Posted by kiwi29 View Post
Oh I always though the PE was like the eisennmann exhaust with a resonator. But that is good set up, do you know what size the piping is ?
Hmm... not sure about that at all. Sorry!
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      09-17-2012, 11:20 PM   #22
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Intake won't really make the exhaust louder but you'll definitely hear some cabin noise from the intake. Headers will make it too loud and raspy. Not really much you can do at this point since you cut out the secondaries already.
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