Originally Posted by HDDP

I don't think you quite understand my point of contention... You can purchase the generic ECU reflash software for the W112 engine off the internet that most these guys use for $75.. There are only two different versions available which they advertise for 91 octane or 93 octane fuel... This software is a Bosch / MB standard software program that advances the timing somewhere in the range of 2-5% and does not alter the AF ratio or increase the performance of the FMU... It is the same program that everyone sells (powerchip, superchip, etc.) for $250-$650. You should realize a minimal hp gain ONLY because of the advanced timing...

The only way you can goose more substantial HP out of timing this car is if you spend hours remapping the ECU in conjunction with the FMU and altering the lambda and 02 sensors... And then testing it on a dyno... And I can pretty much guarantee they have never spent any time doing baseline tests with this W112 engine, then custom modified ECU based on the AF ratio and torque curves...

I would definitely take them up on their offer of a dyno before and after if my car was stock... But mine is so screwed-up with wacked-out modifications, it would not be a fair test...And my software was custom programmed by one of the former Bosch programmers and I don't want to mess-up the hard work we've done so far...

If they want to dyno my car now for free, then install their software and re-dyno it and do a comparison with my current software, I will be more than happy to bring my car to their facility on Wednesday of next week, providing they can guarantee that they can reinstall my current software after the test is completed...