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  1. #1
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    Forza Tuned E46 M3

    A few months ago I bought a set of euro headers off m3forum from @m3e46freak. I would just like to thank him again for holding them for me as long as he did, he's a great guy to deal with and highly recommend buying from him.... Anyway after installing the headers the next step was tuning. There are a lot of great options out there, but I could not justify paying near a grand for a tune on a NA car with basic bolt ons. Long story short a friend of mine put me in contact with Brenton Brown, who just opened up Forza Tuned in Georgetown, Indiana. So after talking to him for a bit I ended up dropping my car off to see what he can do. He was able to get about 20whp out of it, with my only performance mods being catless headers and an afe dry filter. I would HIGHLY recommend Forza Tuned to anyone who is trying to get the most out of their vehicle. When I dropped my car off they were working on a few 800+ whp camaros (two procharged one twin turbo), and they just finished tuning a Ferrari 458. Last week they just got a Lamborghini Gallardo in with a blown engine that is about to be rebuilt with a UGR TT kitClick here to enlarge.
    Back on topic here are my pre and post tune dyno sheets. (no true stock baseline run but oh well)
    Click here to enlargeClick here to enlarge
    -top speed limiter removed
    -shift lights
    -sport button memory
    -improved throttle response
    - no lift shifts ( I haven't tried this yet)
    If interested in having your car tuned by Brenton pm me and ill send you his contact info.

  2. #2
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    Good stuff man! Glad you like the car!
    2009 335i coupe back to stock...for now

    Click here to enlarge

  3. #3
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    Click here to enlarge Originally Posted by mjmarovi Click here to enlarge
    Good stuff man! Glad you like the car!
    Thanks man. She feels like a whole new animal lol

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    Click here to enlarge Originally Posted by G0TB00ST? Click here to enlarge
    Thanks man. She feels like a whole new animal lol
    Now you need to boos that $#@!! haha
    2009 335i coupe back to stock...for now

    Click here to enlarge

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    Click here to enlarge Originally Posted by mjmarovi Click here to enlarge
    Now you need to boos that $#@!! haha
    maybe one of these days lol I need to save up some more $$$

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    I posted the wrong base line graph ( this one cuts out early) but you get the gist of it...
    Heres a quick vid of one of the runs and another sound clip


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    Brenton Brown huh? Nice work, first I've seen of them.

    Good post @gotb00st?

    266 to 285 in STD on a Dynojet.

    If another person tries to tell me the E46 M3 dyno's over 300 whp on a Dynojet...

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    @Sticky thanks man. Yeah Brenton and rich do some amazing work. I'll try to get over there sometime and sneak some pics of the lambo build

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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Brenton Brown huh? Nice work, first I've seen of them.

    Good post @gotb00st?

    266 to 285 in STD on a Dynojet.

    If another person tries to tell me the E46 M3 dyno's over 300 whp on a Dynojet...
    I did like 290whp stock on a dynojet. About 5 years ago.

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    Click here to enlarge Originally Posted by B00stGeek Click here to enlarge
    I did like 290whp stock on a dynojet. About 5 years ago.
    STD on 91 octane?

    I did 275.

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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    STD on 91 octane?

    I did 275.
    Yup. I'm looking in my email right now to see if I can find my old graphs. 3 stock e46 m3s hit the dyno that day. One was somewhere around 268, I did something like 290ish and the 3rd car did something like 285-290.

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    Click here to enlarge Originally Posted by B00stGeek Click here to enlarge
    Yup. I'm looking in my email right now to see if I can find my old graphs. 3 stock e46 m3s hit the dyno that day. One was somewhere around 268, I did something like 290ish and the 3rd car did something like 285-290.
    That's a bit of a large variance. Those are also very high numbers from what I have seen on the dynojet I used.

    Regardless, the E46 M3 does not dyno 300 whp stock. I want to hit my head against a wall now.

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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    That's a bit of a large variance. Those are also very high numbers from what I have seen on the dynojet I used.

    Regardless, the E46 M3 does not dyno 300 whp stock. I want to hit my head against a wall now.
    Yes, it is a bit of a difference. But you're talking cars that have been on the road for years. I'm sure that maintenance would play a role in dyno numbers decreasing. And I do believe the hype about some cars being "factory freaks". Stock cars running 12 without slicks. Some cars must have come out a little beefier.

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    Click here to enlarge Originally Posted by B00stGeek Click here to enlarge
    Yes, it is a bit of a difference. But you're talking cars that have been on the road for years. I'm sure that maintenance would play a role in dyno numbers decreasing. And I do believe the hype about some cars being "factory freaks". Stock cars running 12 without slicks. Some cars must have come out a little beefier.
    Muscle Mustangs and Fast Ford's ran 12's in a stock E46 M3. Why? Because they know how to drag race. Not because their car was a factory freak.

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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Muscle Mustangs and Fast Ford's ran 12's in a stock E46 M3. Why? Because they know how to drag race. Not because their car was a factory freak.
    A stock car running 108mph does say a little something about its power.

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    Click here to enlarge Originally Posted by B00stGeek Click here to enlarge
    A stock car running 108mph does say a little something about its power.
    Or the density altitude and the launch.

    A trap speed is not universal. They vary.

    The E46 M3 is not underrated.

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    Underrated? Nope. Some out there faster from the factory that others.. Yup!!

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    Click here to enlarge Originally Posted by B00stGeek Click here to enlarge
    Underrated? Nope. Some out there faster from the factory that others.. Yup!!
    There will be a variance but it won't be big. The major variance on that car regarding 1/4 mile times is driver skill.

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    This is a relatively low reading dyno jet... On another dyno it could read over 300whp. The point of my post was just show the gain from the tune. Personally I take dyno numbers with a grain of salt because you can dyno the same car on 10 different dynos and get 10 different results

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