• Weistec Engineering now offering Stage I Naturally Aspirated M156/63 AMG tune - +47 wheel horsepower on 91 octane, $990

      We thought this eventually might come but not so soon. Weistec has decided to sell a naturally aspirated tune for the M156 V8 which offers gains of 47 wheel horsepower on 91 octane, impressive. In addition to the horsepower gain torque is upped by 32 wheel, the speed limiter is removed, and the throttle response is optimized. The price is a very reasonable $990 which also is credited toward a supercharger purchase should one decide they want more power.




      Key Features:

      • +47 Wheel Horsepower
      • +32 Wheel Torque
      • Eliminate Top Speed Limiter
      • Increased Throttle Response
      • Optimized Fuel and Spark
      • Credit towards Stage 1/1+ Supercharger Systems


      To order: http://weistec.com/m156nas1.html
      This article was originally published in forum thread: Weistec Engineering now offering Stage I Naturally Aspirated M156/63 AMG tune - +47 wheel horsepower on 91 octane, $990 started by Sticky View original post
      Comments 400 Comments
      1. LZH's Avatar
        LZH -
        WOW.
        Looks like I'm taking a trip down to see Steve.

        Those Weistec seals are also a nice touch...better than epoxy anyway LOL

        I wonder how much more power they could pull out with a 93 octane tune ?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by LZH Click here to enlarge
        I wonder how much more power they could pull out with a 93 octane tune ?
        I don't know, but a good question. 100 octane as well...
      1. Dodger63's Avatar
        Dodger63 -
        Wow this is very interesting can't wait for results
      1. LZH's Avatar
        LZH -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        I don't know, but a good question. 100 octane as well...
        I'd go for a 93 tune as I rarely drive my car and can keep 100 octane on hand to mix. A little birdie also told me they are developing headers Click here to enlarge
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by LZH Click here to enlarge
        A little birdie also told me they are developing headers
        Interesting, I did not hear about that.
      1. LZH's Avatar
        LZH -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Interesting, I did not hear about that.
        Me neither Click here to enlarge
      1. PetroC63's Avatar
        PetroC63 -
        Click here to enlarge Originally Posted by LZH Click here to enlarge
        WOW.
        I wonder how much more power they could pull out with a 93 octane tune ?
        Not 100% sure but I would think the gains would be minimal at best, maybe 5 hp?

        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        I don't know, but a good question. 100 octane as well...
        I've seen a gain of .1 to .15 in ET and about 1 to 1-1/2 MPH mixing MS109 with 93 octane with a different tune. I'm sure Weistec would/could offer a race tune if the customer requested one.
      1. propain's Avatar
        propain -
        Click here to enlarge Originally Posted by LZH Click here to enlarge
        WOW.
        Looks like I'm taking a trip down to see Steve.

        Those Weistec seals are also a nice touch...better than epoxy anyway LOL

        I wonder how much more power they could pull out with a 93 octane tune ?
        Good stuff. Id rather no proof of the Tune on my ECU at all so I would ask to leave the seals off. Click here to enlarge

        Great price too, and I like how its credited toward the SC if you go with one.
      1. Mort's Avatar
        Mort -
        What gains if any might be expected on a C63 with P31 Development Package. Seeing as these gains are from an E63 it might be reasonable to expect similar gains. I don't think anyone else has shown much in the way of gains on a C63 with P31. Have to wait until they do one to find out.
      1. propain's Avatar
        propain -
        Click here to enlarge Originally Posted by Mort Click here to enlarge
        What gains if any might be expected on a C63 with P31 Development Package. Seeing as these gains are from an E63 it might be reasonable to expect similar gains. I don't think anyone else has shown much in the way of gains on a C63 with P31. Have to wait until they do one to find out.
        Seeing how the P31 whp is underrated I don't think you would get much more from tuning a P31. They also perform very close. A tuned C63 vs a P31 was very close. (OE did the test) Keep your P31 stock tune and enjoy your warranty.
      1. fastgti69's Avatar
        fastgti69 -
        That's a lot of power for just a tune.
      1. flipm3's Avatar
        flipm3 -
        Nice! I've always been wondering if they were going to develop an NA tune. If I had a C63 this would probably be the tune I would get. It's nice that on their "Key Features" list, "drama" is not one of them, hehe.
      1. Dodger63's Avatar
        Dodger63 -
        Click here to enlarge Originally Posted by flipm3 Click here to enlarge
        Nice! I've always been wondering if they were going to develop an NA tune. If I had a C63 this would probably be the tune I would get. It's nice that on their "Key Features" list, "drama" is not one of them, hehe.
        There one day into it, hope they dont
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by propain Click here to enlarge
        I like how its credited toward the SC if you go with one.
        This is a really nice touch.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Mort Click here to enlarge
        What gains if any might be expected on a C63 with P31 Development Package.
        I asked, same peak HP.
      1. JRCART's Avatar
        JRCART -
        ...and no epoxy
      1. Mort's Avatar
        Mort -
        Click here to enlarge Originally Posted by propain Click here to enlarge
        Seeing how the P31 whp is underrated I don't think you would get much more from tuning a P31. They also perform very close. A tuned C63 vs a P31 was very close. (OE did the test) Keep your P31 stock tune and enjoy your warranty.
        Thanks. I did see the test OE did and have been thinking the same thing. No sense wasting a warranty for little gain.
      1. JRCART's Avatar
        JRCART -
        Click here to enlarge Originally Posted by LZH Click here to enlarge
        I'd go for a 93 tune as I rarely drive my car and can keep 100 octane on hand to mix. A little birdie also told me they are developing headers Click here to enlarge
        I think the headers are a collaboration with MBH, but I may be mistaken. At least that's the only thing I have heard anything about.
      1. Mort's Avatar
        Mort -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        I asked, same peak HP.
        Thanks for asking. I will keep my eye on it and when I see some solid results on a P31 car posted I'll consider it. I have seen dynojet results in the 425 rwhp range for the P31 cars. I know different dyno different day. I will likely wait until my warranty is up anyway as that makes sense and I have plenty of power for everyday street driving.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by JRCART Click here to enlarge
        I think the headers are a collaboration with MBH
        Interesting.