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    • APR Stage II tune for pulley upgraded S-Tronic B8 S4 3.0 TFSI supercharged V6 versus competitors tune dynograph - Over 400 whp

      Interesting dynograph posted by APR here showing their Stage II software on a 3.0 TFSI B8 S4 versus a competitors Stage I software. The competitor is not named but APR was asked to retune the car and got just under 20 more horsepower at all four wheels out of it to bring it to just over 400 at the wheels on a dynojet in DIN correction. The graph gets choppy at the end where the S-Tronic transmission decided to upshift.

      So what accounts for the gain? APR states the unnamed competitor is not able to tune for the upgraded pulley whereas with their Stage II software they are. It's a bit unfair to not name the competitor so that they may have a chance at a rebuttal so this is a bit one-sided. Regardless, great gains by APR and awesome power out of the S4 on pump gas with their software.


      This article was originally published in forum thread: APR Stage II tune for pulley upgraded S-Tronic B8 S4 3.0 TFSI supercharged V6 versus competitors tune dynograph - Over 400 whp started by Sticky View original post
      Comments 24 Comments
      1. s5 cab tony's Avatar
        s5 cab tony -
        Ok thank you
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by s5 cab tony Click here to enlarge
        I'm in accrington Lancashire do you know anyone else who has had them fitted and if so where they happy as they are not cheap and would hate to get them and there is no difference
        Here you go:

        Click here to enlarge

        From SuperSprint:

        Click here to enlarge Originally Posted by SuperSprint Click here to enlarge
        - 767731 (pipes that removes the OEM cats) and 767702+767732 front pipe with metallic cats
        List price is € 3.202
        This setup has not showed dramatically improved performance on an S4 fitted with a MTM remap.
        A bit more torque in the mid range but not higher max power.

        Or even better:
        -769101 + 769111 "Street" headers + 767702+767732 front pipe with metallic cats
        List price is € 5.230
        This setup give a OEMcar a 9 hp increase, 13 hp on a car with a Revo Stage 1 Map.

        I think that on a car with a reduced pulley and correct software the increase would be much higher with the headers, probably around 20 hp.

        By the way, the car gets quite louder and high pitched when you replace the stock cats, so I can't assure a sufficient level of comfort if fitted with a different brand's catback!
      1. s5 cab tony's Avatar
        s5 cab tony -
        Superb many thanks
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by s5 cab tony Click here to enlarge
        Superb many thanks
        You are very welcome, let us know how it goes.