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Hey guys, I have an RB20det with rb25det 45v1 turbo (standard RB20 wastegate), FMIC, GTR pump, 3" straight pipe, EVC4 etc. Just all of the basic mods really.

I'm looking in to getting one of these Marobi chips as they have just popped back up on trademe and are cheap enough to give a try. Anyway I have advised the guy of the mods to my car, and he has come back saying this:

the rb25 turbo requires a different map to be tuned well, there is a possibility of leaning out with both your factory chip and this one if you installed it

Is this true? My car seems to run fine with this turbo?

The chip is tuned for upgraded fuel pump, factory injectors/AFM, FMIC, Free flow air filter and exhaust, and also says

If you have modified turbos, this chip will wake them up !!! Mapped up to 18 PSI !!!

Now to me, this sounds near on exactly the same as my setup? Can anybody elaborate?

I am aware that a generic chip will never give me the same results as a custom tune, but the factory setup is 'generic' in a way aswell, so I figure atleast this chip is closer than factory to what I am running.

Cheers

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https://www.sau.com.au/forums/topic/350847-chip-info/
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do not go for a remap, it is basically a mail order tune or a stuck remap, ie you cant touch it

the problems are lack of tuners, cost to retune it and hardware needed

you are far better off getting a locally supported ECU option

check out apexi powerfc, nistune or vipec

all will give you what you want

my pref is powerfc - see the FAQ in my signature for why

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https://www.sau.com.au/forums/topic/350847-chip-info/#findComment-5630580
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