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S54 Intake Sound Question/Debate

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    #31
    Originally posted by Sharocks View Post
    If you have an exhaust, do not get a CSL intake.

    You won't hear it.
    With all due respect, I'm not sure I agree. I have a custom rear section and a Karbonious airbox and I can absolutely hear the gloriously intoxicating sound emanating from both ends (see what I did there), sooo.... 🤷‍♂️


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      #32
      I have the haimus box and it is worth every penny. WOT high in the rev range with the windows down is unbeatable. I have catless headers and an el diablo exhaust with catted section 1 as well. Not a terribly loud exhaust set up, but not quiet. I don't feel like it interferes with the intake sound too much.
      • Likes 3

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        #33
        Originally posted by eforty6_m3 View Post

        With all due respect, I'm not sure I agree. I have a custom rear section and a Karbonious airbox and I can absolutely hear the gloriously intoxicating sound emanating from both ends (see what I did there), sooo.... 🤷‍♂️
        Depends on what custom rear end. My friend has a Friedrich Titanium exhaust and that thing just completely overpowers the intake. I have a OM Scorza and I can hear my Airbox quite well. Recently I also removed the sound insulation on both sides of the firewall, now I can hear it even better 😁

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          #34
          +1 on the CSL intake. I had the Karbonius CSL intake on my car and loved every minute of it! Will be up for sale as soon as I’m allowed to and will come with install kit! 🤙🏻
          edit: I’ll also add that the CSL intake is definitely loud, even with a head to section 3 exhaust. The difference in intake vs exhaust sound was very clear to me.
          Last edited by Notan_S54; 03-16-2024, 04:00 PM.

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            #35
            +1 on the CSL intake as well. Had an exhaust prior to install and thought to myself the intake wasn't as loud as I'd hoped. Then I went stock muffler (with high flow cats in section 1) and entire experience changed i.e. dial got turned to 11.
            | 06 6 Speed Vert - JB on Cinnamon|Beisan|ACL RB's|ST Sway Bar|​3.91|Bi-LED|​ TMS CSL Box|Megan headers|H.T.E Tune|Bryson Air Inlet|​550 Injectors|OEM Section 1, 2, 3|200 Cell Cats|OEM SSK|Bilstein B12|712 yellow tag




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              #36
              Oh, and if you are worried about smog, karbonius now makes an oem carbon intake that produces the sound and uses the maf; so that may pass California inspections if it’s just the plug in test.

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                #37
                Originally posted by Notan_S54 View Post
                Oh, and if you are worried about smog, karbonius now makes an oem carbon intake that produces the sound and uses the maf; so that may pass California inspections if it’s just the plug in test.
                It’s a visual inspection too. Some places might turn a blind eye but a big ass carbon fiber intake manifold is really asking for it lol.
                http://www.natehasslerphoto.com
                '99 M3, Hellrot/Sand Beige, slicktop
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                  #38
                  Has anyone tried this? I would be curious as to the sound comparison to a CSL. It claims most of that without the tuning headaches.
                  IND E46 M3 / E85 / E86 Z4M (S54) Carbon Intake Package
                  https://ind-distribution.com/collections/m3-e46/products/ind-e46-m3-e85-e86-z4m-s54-carbon-intake-package?fbclid=IwAR10A2WUxL-ulkDCp5TI4BcMvkCMWdMyPnrPKX0aNmZFafGd_Osgmr_2o0Q
                  BMW E46 OEM STYLE AIRBOX, CSL Airbox is one of the most demanded improvements among BMW M3 E46 enthusiastic. That is both for performance gain, and for sound it brings to car. On the other hand, it is a laborious, time-consuming and expensive modification. For those who are looking for similar sound to CSL airbox but do not look for HP gain, we have developed the Karbonius OEM Style S54 airbox. It is a simplified version of CSL airbox, that, apart from louder sound to engine (+12 dB compared to plastic OEM) gives awesome appearance and easy installation using stock elbow and MAF. No needed to install any additional hardware or remap. *In SMG version, genuine BMW CSL SMG expansion tank needed. Regarding power increase, we got +4HP in recent dyno test comparing with OEM airbox. Not really significant considering that dyno can have a 2% margin error. In conclusion, and pending new test in future, we can say no significant power increase and no HP loss. As usual, piece manufactured 100% in carbon fiber prepreg, cured in autoclave in our facilities in Spain (EU) under strict quality requirement and for qualified stuff. Kit Includes: • Airbox • CNC machine-made items of anodized aluminium • Stainless-steel screws • Certificate of authenticity Characteristics: • Similar sound to CSL airbox • No remap needed • 100% Carbon Prepreg • Cured in autoclave • High gloss UV protection varnish • Perfect fit. No adjustment required • 2 years guarantee Fitment: • BMW E46 M3 • BMW E85/E86 Z4M

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                    #39
                    Originally posted by ViN View Post
                    Has anyone tried this? I would be curious as to the sound comparison to a CSL. It claims most of that without the tuning headaches.
                    https://ind-distribution.com/collect...fGd_Osgmr_2o0Q
                    Looks like the greedy pricks at IND raised the price a few hundred bucks on this combo kit.
                    Instagram: @logicalconclusion

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                      #40
                      Is better than stock plus Eventuri for sure, but I would say is not as loud, perhaps 80% of the volume. The sound is also a bit different as is higher in pitch and not as gutural as the CSL.

                      i have the two setups, what you posted above and an actual CSL Karb.

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                        #41
                        Originally posted by Nate047 View Post

                        It’s a visual inspection too. Some places might turn a blind eye but a big ass carbon fiber intake manifold is really asking for it lol.
                        Yeah I can’t imagine the intake being mistaken for oem on our cars lol

                        It’s rough being a car enthusiast and wanting these sought after mods haha!

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                          #42
                          Originally posted by maupineda View Post
                          Is better than stock plus Eventuri for sure, but I would say is not as loud, perhaps 80% of the volume. The sound is also a bit different as is higher in pitch and not as gutural as the CSL.

                          i have the two setups, what you posted above and an actual CSL Karb.
                          This was what I was looking for! After having the Karb CSL box on my car it was time to move to a setup that didn’t require removing every two years. Good to know the eventuri + oem style setup still makes ~80% of the noise

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                            #43
                            Originally posted by Notan_S54 View Post

                            This was what I was looking for! After having the Karb CSL box on my car it was time to move to a setup that didn’t require removing every two years. Good to know the eventuri + oem style setup still makes ~80% of the noise
                            This was my path, Karb CSL to Karb OE + Eventuri. I do not regret it but I sometimes miss the deep growl from the CSL intake. Power wise is the same, and drivability is same as factory.
                            • Likes 2

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                              #44
                              Originally posted by Teemmy View Post
                              Does the gruppe M intake have any sound benefit? Seems like it should be similar to the eventuri except it has a snorkel to the front kidneys
                              GruppeM is louder than stock but not as loud as Eventuri (which is an open filter inside engine bay). GruppeM a better design power wise. But the thread is about more intake sound so not the design you’re after.
                              6MT SLICKTOP - OE CSL Wheels - OE CSL Brakes - CSL Rack - CSL Trunk - CSL Diffuser - AA Tune - AA Pulleys- AS 40% SSK - 4.10 Motorsport Diff - Bilstein PSS9s - H&R Swaybars - CSL Lip - Gruppe M CF Intake - Supersprint - M Track Mode

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                                #45
                                Originally posted by Notan_S54 View Post
                                Oh, and if you are worried about smog, karbonius now makes an oem carbon intake that produces the sound and uses the maf; so that may pass California inspections if it’s just the plug in test.
                                Do you have a link to this new intake?

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