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Message: <blockquote data-quote="LoWPrOfiLe" data-source="post: 1289015" data-attributes="member: 1705">Hey Guys.. Interesting discussion here...I humbly believe that stock ECU's can never be replaced by any standalone ECU's. Having said this, I would also like to stress that car manufacturers spend millions on R&D with countless number of hrs getting the optimum a/f and timing vs coolant, air, battery volt and yadda yadda yadda...BUT after mods are done it would not be the same situation. I would also say that generally, stock ECU's are developed to be fuel efficient and not compromising the emissions test with conservative timing hence restricting potential horses.I'm not FOR standalone EMS but I feel that if the few criterias are met ($$$$ not a prob, mods where the engine needs more fuel... higher boost... cams... ITBs... yadda yadda yadda, and finally a good knowledgable workshop which would not slaughter you) Go for it..Having said that, Piggybacks are also usable up to a certain extent and it would be up to the owner and workshop to advice if its sufficient enough for the engine to be safe and unleashing the full potential of the already done modifications.A simple example would be recondition cars from Japan say ermm... a EvO 7?I'm not too sure what the octane level is there...anyone?.. we're pumping 97 here. Since the discussion of blowing engines due to map vs correction map..I again humbly ask u, is the weather and climate similar to Malaysia's? I doubt so. I'm only Assuming that our Octane levels are higher(comparing to the States, 92 there) enabling us to make full use of it and running higher timing curves that is of course if we have a programmable EMS. Its how much experience and knowledge the workshop has, to play with the variables.Having said all these, you can only apply so much (experience & equipment) when tuning on the road. Tuners would only be able to tune maybe ...65 % to 80% out of the full safe potential of the car. Dyno tuning is a necessity and even choosing the right dyno's to tune is Important.I'm also gonna go off topic abit by saying this, A good tuner would not tune above the engine's threshold and limit although he can. However good a tuner(since not all are his/her customers), certain unseen and only assumable variables like stock internals not meant to take that type of horses.. bad condition engines would be his/her biggest challenge.I think i've ramble too much.. Good night and happy modding!!:regular_smile:</blockquote>

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