• Motorsport 24 developing new aftermarket S65 headers for the E9X (E90,E92,E93) M3 - Gains of 27 horsepower claimed

      German racing component manufacturer Motorsport 24 is in the middle of reinventing the wheel with their newly developed headers for the S65. After a year of research, the M24 team is confident that they have improved upon the already stellar original BMW design. While these headers are still in the middle of optimization and development, initial testing has shown an increase in power as well as a substantial reduction in exhaust gas temperatures.

      M24 will be releasing a direct-fit road car version of these headers, meant to fit on any street exhaust system, as well as a true racing version for S65 V8 engines. IND is M24's North American distributor, and we all felt very fortunate to see preview photos of these early prototypes. Please stay tuned for updates!



      This article was originally published in forum thread: Motorsport 24 is developing new S65 headers! started by Nate@IND View original post
      Comments 44 Comments
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by DBFIU Click here to enlarge
        Fantastic. This is how you get gains, take the time to R&D and do it right. Make sure the i's are dotted and t's are crossed, in the end you'll have a good product. You can't slap together tubes and expect to get gains, that's not how you design a header. These things are probably tuned specifically for the S65 exhaust resonance.
        Need to see a dyno first...
      1. Nate@IND's Avatar
        Nate@IND -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Need to see a dyno first...
        +1 Once we have the dyno runs from M24 we will officially release the headers in the US. I'm working on getting the pricing set at under 4k Click here to enlarge
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Nate@IND Click here to enlarge
        +1 Once we have the dyno runs from M24 we will officially release the headers in the US. I'm working on getting the pricing set at under 4k Click here to enlarge
        Under $4k would be excellent! The dyno runs will be from a European dyno though?
      1. DBFIU's Avatar
        DBFIU -
        under 4K is reasonable
      1. Nate@IND's Avatar
        Nate@IND -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Under $4k would be excellent! The dyno runs will be from a European dyno though?
        I'm trying my best to keep them under 4k.

        The first dyno runs will be from a European dyno. When we get the fisrt set in the US the dyno testing will be at AMS.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Nate@IND Click here to enlarge
        The first dyno runs will be from a European dyno. When we get the fisrt set in the US the dyno testing will be at AMS.
        Now that is what I like to see.
      1. lughed's Avatar
        lughed -
        That looks niiice! To be honest, i hate the original exhaust. Doesnt it have crimps in it for some reason? Or am i mistaking? That exhaust route just irretates me when looking at it.
      1. Puerto Rican 335d's Avatar
        Puerto Rican 335d -
        Wow 27 hp gain amazing, but the price Click here to enlarge yikes, its almost the cost of placing a turbo or more. I'll stay with my DIESEL Click here to enlargeClick here to enlarge
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by lughed Click here to enlarge
        That looks niiice! To be honest, i hate the original exhaust. Doesnt it have crimps in it for some reason? Or am i mistaking? That exhaust route just irretates me when looking at it.
        The headers here are similar somewhat to the stock header setup.
      1. klipseracer's Avatar
        klipseracer -
        Racing teams will pick these up for sure.
      1. inlineS54B32's Avatar
        inlineS54B32 -
        I think this is cool... I personally haven't made up my mind completely, but most likely will stay NA... Stuff like this makes me pretty stoked. If this coupled with a good exhaust system adds 60 rwhp - and I get to keep the throttle response of my M - I would be one happy person.This is one thing that was "depressing" about the e46 m3 - there just wasn't much NA modifications out there. I had a good gut feeling that this engine had much more potential (as where the s54b32 was/is pretty maxed out from factory) - things like this confirm that feeling and make me want to spend 4k. Click here to enlargeCheers.
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        Nate, sorry for off topic, I noticed on their site they have upgraded plastic intake tubing (front and rear) for the N54 (135i)...I sent them a message today but thought I'd ask you as well to see if you had any info on that and if it was available for purchase..any info would be appreciated.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by inlineS54B32 Click here to enlarge
        and I get to keep the throttle response of my M
        The part I missed the most.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by dzenno Click here to enlarge
        Nate, sorry for off topic, I noticed on their site they have upgraded plastic intake tubing (front and rear) for the N54 (135i)...I sent them a message today but thought I'd ask you as well to see if you had any info on that and if it was available for purchase..any info would be appreciated.
        Try this: @Nate@IND
      1. lughed's Avatar
        lughed -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        The headers here are similar somewhat to the stock header setup.
        Yes i see they are similar but the stock headers have crimps in them i believe.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by lughed Click here to enlarge
        Yes i see they are similar but the stock headers have crimps in them i believe.
        Yes, minor crimps at certain points. Still, the stock headers are supposedly hard to improve on.
      1. flipm3's Avatar
        flipm3 -
        M24 doesn't seem to skimp out on any of their products. It looks like these headers have the same path as the OEM, but it looks like noticeably larger primaries and a slightly different collector design.

        I am DEFINITELY looking forward to seeing the dyno graphs of these headers.

        Looking at the two different flanges in those photos. Is one the "Race" and the other the "Street"?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by flipm3 Click here to enlarge
        Looking at the two different flanges in those photos. Is one the "Race" and the other the "Street"?
        Good eye!
      1. lughed's Avatar
        lughed -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Yes, minor crimps at certain points. Still, the stock headers are supposedly hard to improve on.
        A crimp of only 1/4" effectively decreases the diameter of a pipe a good amount. Removing the crimps is a big improvement by itself.
      1. folgrz's Avatar
        folgrz -
        Those headers looks so ridiculously badass! $4k is steep!