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    • Official: Weistec M157 bi-turbo 5.5 liter AMG V8 turbo upgrade, downpipes, and exhaust officially launched with specs, pictures, and pricing

      Here it officially is and what many of you have been waiting for, the Weistec M157 bi-turbo upgrades including upgraded turbos, exhaust, and downpipes. Many of you have already seen the power figures as these upgrades powered the M157 to a new horsepower record with 727 at the wheels and also were seen in real world action at the recent No Fly Zone event showing impressive performance against stout competition including Wesitec's own Stage III M156 supercharger.

      Let's start with the turbo upgrade which is priced at $8,495:


      Key Features:


      • 5 Axis CNC Machined
      • High RPM Balanced for perfection operation
      • 53+ Lbs/min compressor flow
      • Includes Updated ECU Calibration
      • 100% Bolt on installtion
      • All hardware and gaskets are included
      • 730 WHP, 730 WTQ, with supporting upgrades


      Supported Platforms


      • 2012-Present CLS63 AMG
      • 2012-Present E63 AMG (Sedan and Wagon)
      • 2012-Present S63 AMG
      • 2012-Present CL63 AMG
      • 2012-Present ML63 AMG
      • 2013-Present SL63 AMG
      • 2013-Present G63 AMG


      Pictures:













      Now onto the downpipes which are available also for the M278 V8 along with the M157. The downpipe upgrade includes test pipes and midpipes along with a heat shield, gaskets, and associated hardware. Pricing is $4,795 and they are titanium ceramic coated on the outside with copper ceramic coating on the inside. The midpipes bolt right up to the downpipes and also the factory axle-back system for seamless installation.

      Key Features:


      • 100% mandrel bent and TIG welded
      • Constructed of low carbon 304 Stainless Steel
      • Stainless steel heat shields offer the Weistec look and function
      • Easy bolt-on solution
      • Improves exhaust note


      Supported Platforms


      • 2012-Present CLS550 / CLS63 AMG
      • 2012-Present E550 / E63 AMG (Sedan and Wagon)
      • Extended Support Coming Soon


      Pictures:





















































      Congratulations to Weistec for their pioneering of turbo and downpipe upgrades and offering these so quickly in the M157 engine lifespan well before anyone else.

      Additionally, this is not the end of upgrades to come from Weistec for this motor. Stay tuned, plenty more in the pipeline. Congratulations and well done once again, quite the standard being set.

      This article was originally published in forum thread: Weistec Turbo Upgrade and downpipes-Official started by Jacob502 View original post
      Comments 117 Comments
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by nawlinstornado Click here to enlarge
        Care to comment as to why?
        Yes, regarding the design and the quality. I really wish @Weistec would just explain why their pipes differ.
      1. nawlinstornado's Avatar
        nawlinstornado -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Yes, regarding the design and the quality. I really wish @Weistec would just explain why their pipes differ.
        Yes, @Weistec, please tell us more. Beyond the absolutely gorgeous fit and finish, what more is offered by your downpipe/midpipe than Kleemann's or other competitors?
      1. GhanemMBN's Avatar
        GhanemMBN -
        Any 1/4 mile runs?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by GhanemMBN Click here to enlarge
        Any 1/4 mile runs?
        Not yet, someone will have to get out to the track but it's getting warm here in California.
      1. gaspam's Avatar
        gaspam -
        looks like boost logic has copied these now and selling them for more than 1/2 price Click here to enlarge

        boostlogic.com/product/mercedes-m157-stainless-downpipes-and-midpipes/
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by gaspam Click here to enlarge
        looks like boost logic has copied these now and selling them for more than 1/2 price Click here to enlarge

        boostlogic.com/product/mercedes-m157-stainless-downpipes-and-midpipes/
        Is Boostlogic known for copying or undercutting?

        I mean, definitely, it looks similar but there will be a similarity among M157 downpipes won't there?
      1. gaspam's Avatar
        gaspam -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Is Boostlogic known for copying or undercutting?

        I mean, definitely, it looks similar but there will be a similarity among M157 downpipes won't there?
        not sure as i never new them to be in the benz market but they do have a couple of stupid fast GTRs

        but it does look like a direct copy
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by gaspam Click here to enlarge
        but it does look like a direct copy
        You are not the only one who thinks so.
      1. gaspam's Avatar
        gaspam -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        You are not the only one who thinks so.
        i emailed them to see if they fit awd and they said they have not tried them on awd yet, so that's probably a "no", without getting some low profile motor mounts or cutting the pipe ...

        also asked them in follow up email if they had and before and after dynos and waiting to hear back (to see if they actually work as well as weistecs)
      1. kponti's Avatar
        kponti -
        My opinion.....
        Weistec themselves have not had any real world dynos that show anything remotely near their in house dyno numbers. Even their tune only numbers are more along 540-580rwhp real world. Which is NOT bad, just saying the gains are not as high their in house dyno shows.
        I have yet to see a single M157 with any kind of bolt on (turbos not included) hit above 640rwhp
      1. kponti's Avatar
        kponti -
        Also I think Weistec's price point is actually not terrible for the product, however its grossly inflated for the RWD models considering the competition out there. They are the only ones who make a product for the AWD crowd that does not involve cutting and splicing anything, just remove and replace parts. However on the RWD W212, the motor mounts etc etc is not an issue so its being replaced....well for replacement sake cos the AWD needs it.

        Kinda like the AMS cooling setup that costs the same for the RWD vs the AWD. The AWD versions do not need the second pump and that many extra components as the RWD does. But its priced the same making it almost worthless to buy the cooling for the AWD (you can buy just the larger HE, most cost effective and will probably do about 90% of what the whole kit will do). However the whole kit is needed on the RWD version.

        With time, pricing will come around to where the market deems acceptable. Just takes some time.
      1. Tony@VargasTurboTech's Avatar
        Tony@VargasTurboTech -
        I need to spend more time reading. This is their first upgrade. Their new W.4 157 upgrade is one of the best we have seen
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by kponti Click here to enlarge
        My opinion.....
        Weistec themselves have not had any real world dynos that show anything remotely near their in house dyno numbers. Even their tune only numbers are more along 540-580rwhp real world. Which is NOT bad, just saying the gains are not as high their in house dyno shows.
        I have yet to see a single M157 with any kind of bolt on (turbos not included) hit above 640rwhp
        Care to show those graphs?
      1. gzim335's Avatar
        gzim335 -
        Click here to enlarge Originally Posted by kponti Click here to enlarge
        My opinion.....
        Weistec themselves have not had any real world dynos that show anything remotely near their in house dyno numbers. Even their tune only numbers are more along 540-580rwhp real world. Which is NOT bad, just saying the gains are not as high their in house dyno shows.
        I have yet to see a single M157 with any kind of bolt on (turbos not included) hit above 640rwhp
        don't hold ur breath,upgraded w3 ams intakes ams cooling full weistec dp exhast straight piped n puts down 650whp dj numbers,thats all u can do to this car except going real turbo upgrade n not just a hybrid
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by gzim335 Click here to enlarge
        don't hold ur breath,upgraded w3 ams intakes ams cooling full weistec dp exhast straight piped n puts down 650whp dj numbers,thats all u can do to this car except going real turbo upgrade n not just a hybrid
        So.... the S63TU is actually the better motor?

        M157 guys aren't beating their chests hard these days.
      1. gzim335's Avatar
        gzim335 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        So.... the S63TU is actually the better motor?

        M157 guys aren't beating their chests hard these days.
        m157 is nowhere near s63tu,we were fooled in the early m5 days
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by gzim335 Click here to enlarge
        m157 is nowhere near s63tu,we were fooled in the early m5 days
        I know. It's just funny how it turned out once the S63TU could be tuned.