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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 > Louder! Need to get more rawness out of the 330i



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      07-07-2014, 08:58 PM   #1
sport330i6spd
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Louder! Need to get more rawness out of the 330i

Hey guys, just picked up a new-to-me 2006 330i, love the car for the most part. Black on black, sport suspension, manual transmission, very happy with it.

The only issue is the noise, or lack of it... it's very well insulated. My two previous cars were noisy little shits - an AP1 S2000 and NA MX5 - so I'm looking to make the 330i louder and just... rawer. What's a cost-effective way to do this? I've been looking around at exhaust options but dropping $1,500 or more on some piping seems like a lot of cash.

What should I be considering in terms of mods?
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      07-07-2014, 09:11 PM   #2
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Muffler and/or resonator delete. Or muffler delete and throw on a MagnaFlow
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      07-07-2014, 09:28 PM   #3
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I have the same car, I installed the BMW performance exhaust, it's light and has the right amount of sound. Just like BMW intended
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      07-08-2014, 01:20 AM   #4
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For 1500$ eisenmann race exhaust. The performance exhaust is good if you want to keep it OEM but you sound like you wouldn't mind to break those perimeters. You would have to spend a little more than 1500$ for a new eisennman muffler and midpipe more like 1700-2000. The eisennman doesn't have drone like the performance exhaust either so you won't be compromising on your quiet cabin.
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      07-08-2014, 11:27 AM   #5
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Muffler delete and secondary cat delete. Under 250$ and makes amazing noise with lots of nice gargle and popping
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      07-08-2014, 12:01 PM   #6
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      07-08-2014, 12:42 PM   #7
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      07-08-2014, 12:43 PM   #8
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I'd say cone intake like injen etc (that's what I use), and a secondary cat delete and/or magnaflow muffler.

I've heard many muffler deletes that have a lot of raspiness to it, if that's your thing go for that too.
That's just not my cup of tea.
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      07-08-2014, 01:07 PM   #9
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How are the mmw headers holding up?
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      07-08-2014, 06:33 PM   #10
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I think the most cost effective option is to delete the second cats and resonator, while leaving the stock muffler in. This will give you both sound and performance, without being annoyingly loud.
If you want a real refined sound I would go with second cat delete + BMW performance exhaust. That option is around $1,100.
Good luck, Let us know what you decide and post some vids!
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      07-10-2014, 11:46 AM   #11
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Quote:
Originally Posted by sport330i6spd View Post
Hey guys, just picked up a new-to-me 2006 330i, love the car for the most part. Black on black, sport suspension, manual transmission, very happy with it.

The only issue is the noise, or lack of it... it's very well insulated. My two previous cars were noisy little shits - an AP1 S2000 and NA MX5 - so I'm looking to make the 330i louder and just... rawer. What's a cost-effective way to do this? I've been looking around at exhaust options but dropping $1,500 or more on some piping seems like a lot of cash.

What should I be considering in terms of mods?
supersprint headers + Evolve tune + PE or similar
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      07-11-2014, 12:57 AM   #12
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You can get m perf. exhaust for ~900.

I used to own Honda Prelude and missed the sound as well.

Pe will be louder than S2000 though...

Overall things i did to my 328i to restore "rawness":

- ordered with sport pack and MT
- deleted clutch delay valve
- installed pbx powerbox (mostly for pedal response)
- euro intake
- m performance exhaust

All of these i did one by one during 4 years.

If i wanted to go further, I'd look into putting in M suspension components.

Last edited by accel; 07-11-2014 at 10:28 AM.
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      Yesterday, 06:49 AM   #13
sport330i6spd
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Awesome, thanks for the great ideas guys.

Question: What's the recommended place to buy this stuff for a good price? Where did you get yours from?

And for the secondary cat delete, will that make the car fail inspections? Or it doesn't affect things like emissions?
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      Yesterday, 02:40 PM   #14
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this is when I first installed it, it's broken in now and sounds amazing.
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