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Old 07-30-2014, 03:00 PM   #1
6th Element
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E46 Exhaust Question

So I've been itching to delete my front muffler/resonator (as some people might refer to as) along with the middle resonator on my 330. I already have a rear muffler delete but, I want it to be louder without having to mess with headers and cats because of CA emissions being a pain in the ass. I was originally thinking of getting Ebay headers but, that's out of the equation now.
So basically looking to do straight pipes after cats all the way to the tips.

I've looked around for videos but haven't come up with much. The ones I did find, don't know if they're a 330 or if they even have both "resonators" deleted.
Just states "E46 muffler and resonator delete" for example.

Does anyone know what this will sound like? Will deleting them both make much of a noticeable difference?

Any input or videos will be greatly appreciated.

-Feel free to criticize. Some people on this board like doing that anyways, instead of answering questions
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Old 07-30-2014, 03:09 PM   #2
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There is really no way of anyone accurately describing what it would sound like to your ears. Without actually hearing it in person it's just not possible. I will say that in my personal opinion even deleting the muffler sounds awful so I can't imagine how it would sound with straight pipes after the cats. You are trying to make your car sound like something it's not and in the process you're just making it sound as though your exhaust is rusted and broken. If you're after a performance sound then why not do it the right way and find a cat back system that suits your needs. This will also help the performance of the car instead of hurting the performance by hacking up the stock system. Just some food for thought.


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Old 07-30-2014, 03:12 PM   #3
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you must be a teenager, this topic has been covered many times!









not srs LOL


go to the exhaust shop and remove the second resnator (clostest to your muffler) then go for a test drive, it should be tad louder. if its not loud enough then remove the other resnator. then test drive, it should have a more growl, throaty sound without being too loud. keep in mind it'll drone and rasp like crazy. to remove the rasp a AR-120 high flow resnator can be put on to elimenate the rasp
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You could put in a cold air intake that would probably give u 5-15 go increase and if u put a cat back exhaust u could get 40+ hp (pretty sure it more but) together plus high octane gas maybe u could get like 50+ hp
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Old 07-30-2014, 03:12 PM   #4
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I would caution you, most have found that removing either of the resonators resulted in Undesirable sound. So if you proceed, just do One at a time to see if it works for you.


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Old 07-30-2014, 03:22 PM   #5
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Thanks for the replies guys.

As far as why I'm not "doing it right" and getting a performance cat back exhaust, is because I'm saving up for a decent set of coilovers. I'm a college kid. So you can imagine that I don't have $1,500-$2,000 laying around to spend on a performance exhaust AND coilovers. So I have to do it one at a time and I've decided on coilovers to be first since I plan on tracking my car soon.
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Old 07-30-2014, 03:23 PM   #6
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That'll be stupid loud. I couldn't stand a muffler delete alone in these cars.

If you're enjoying the muffler delete and don't want to cry from the drone, I guess do what you want and go ahead and straight pipe it all the way through.
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Old 07-30-2014, 03:26 PM   #7
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Get the bimmerworld. Its what I ended up with. Best bang for the buck.
http://store.bimmerworld.com/mobile/...ion-p2146.aspx

You'll need to have a y pipe fabricated, or wait for bimmerworld to release one for the OEM headers. Sounds good, and you'll save about 50lbs....
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Old 07-30-2014, 03:30 PM   #8
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That'll be stupid loud. I couldn't stand a muffler delete alone in these cars.

If you're enjoying the muffler delete and don't want to cry from the drone, I guess do what you want and go ahead and straight pipe it all the way through.
You find muffler delete alone to be too loud? Hmm interesting. Respect your opinion though

Straight piping is always reversible, if cut right. So I can always go back if it's too loud or has too much drone.

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Get the bimmerworld. Its what I ended up with. Best bang for the buck.
http://store.bimmerworld.com/mobile/...ion-p2146.aspx

You'll need to have a y pipe fabricated, or wait for bimmerworld to release one for the OEM headers. Sounds good, and you'll save about 50lbs....
Thanks for the link sir will keep this in mind for the future.
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Old 07-30-2014, 03:54 PM   #9
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I'd guess that running purely straight pipes would sound similar to running with the exhaust unbolted after the cats. I did that once because I just wanted to hear what it would sound like. Yeah... Not good. It's loud alright, but the quality of sound is pretty awful.
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Old 07-30-2014, 04:06 PM   #10
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If you want to know what it will sound like, just find your nearest riced out tuner car and stand behind it. The rasp is just about unbearable. I swapped the muffler with a y pipe to 3" single tip, headers, WITH both resonators and it sounds perfect. Deleting the resonators is awful
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Old 07-30-2014, 04:46 PM   #11
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I'd guess that running purely straight pipes would sound similar to running with the exhaust unbolted after the cats. I did that once because I just wanted to hear what it would sound like. Yeah... Not good. It's loud alright, but the quality of sound is pretty awful.
Do you know if it has a noticeable difference from just a muffler delete alone?

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If you want to know what it will sound like, just find your nearest riced out tuner car and stand behind it. The rasp is just about unbearable. I swapped the muffler with a y pipe to 3" single tip, headers, WITH both resonators and it sounds perfect. Deleting the resonators is awful
If the rasp is as bad as you say it is, I can always get rid of the pipes and throw the resonators back on.
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Old 07-30-2014, 04:52 PM   #12
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E46 Exhaust Question

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You find muffler delete alone to be too loud? Hmm interesting. Respect your opinion though.

I've had a muffler delete for about 6 months. I recently started to commute downtown and pulling away from a stoplight in traffic is plain embarrassing. I love the burbles when you let off the gas and at the limit it sounds great, but it does drown out the engine sound.

My car has fold down seats so I probably experience more cabin noise and drone than other cars without that feature.

I just went ahead and bought the ZHP muffler to replace the muffler delete.

Good job keeping the thread respectful
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Old 07-30-2014, 04:56 PM   #13
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I've had a muffler delete for about 6 months. I recently started to commute downtown and pulling away from a stoplight in traffic is plain embarrassing. I love the burbles when you let off the gas and at the limit it sounds great, but it does drown out the engine sound.

My car has fold down seats so I probably experience more cabin noise and drone than other cars without that feature.

Good job keeping the thread respectful
I actually haven't had any drone at all surprisingly. The burbles, however, are a whole different story

Thanks man. I try to. No need for unwanted and unnecessary drama
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Old 07-30-2014, 05:27 PM   #14
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I actually haven't had any drone at all surprisingly. The burbles, however, are a whole different story



Thanks man. I try to. No need for unwanted and unnecessary drama

Do you have folding seats? Manual tranny?
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Old 07-30-2014, 05:28 PM   #15
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Do you have folding seats? Manual tranny?
I do have folding seats but no manual tranny unfortunately
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Old 07-30-2014, 05:54 PM   #16
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Do you know if it has a noticeable difference from just a muffler delete alone?
Based on videos I've heard of muffler deletes and comparing it to the no-exhaust sound on video it's a pretty significant difference. I haven't heard a muffler-delete e46 in person, but I can tell you with a fully open exhaust in person it doesn't sound good... With the exhaust fully open it had a ragged sound like you'd expect from a demolition derby car or a junker with a massive exhaust leak. The resonators that are left in place with just deleting the rear muffler tune the sound some as well as silencing it.
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Old 07-30-2014, 06:57 PM   #17
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Based on videos I've heard of muffler deletes and comparing it to the no-exhaust sound on video it's a pretty significant difference. I haven't heard a muffler-delete e46 in person, but I can tell you with a fully open exhaust in person it doesn't sound good... With the exhaust fully open it had a ragged sound like you'd expect from a demolition derby car or a junker with a massive exhaust leak. The resonators that are left in place with just deleting the rear muffler tune the sound some as well as silencing it.
I think I'll just do what you did. Unbolt the flanges up front, right after the cats, and see what it sounds like in person before actually hacking off the resonators.
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Old 07-30-2014, 07:40 PM   #18
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Originally Posted by Tangent_ View Post
Based on videos I've heard of muffler deletes and comparing it to the no-exhaust sound on video it's a pretty significant difference. I haven't heard a muffler-delete e46 in person, but I can tell you with a fully open exhaust in person it doesn't sound good... With the exhaust fully open it had a ragged sound like you'd expect from a demolition derby car or a junker with a massive exhaust leak. The resonators that are left in place with just deleting the rear muffler tune the sound some as well as silencing it.
The Bimmerworld exhaust doesn't sound that bad, and came with a full straight pipe option, as well as a resonator option. But, keep in mind this is a spec racing exhaust. Its not a Corsica that is made for sound over weight savings and hp...
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