help apr stage 1 + ko4?

[jaime_1]

i currently buyed a ko4 but my car have apr stage 1 thats its supoosed to work with stock ko3. will my car run fine?

[Rodgman15]

From what I've seen of other users, yes, but it won't be optimal. Need a K04 tune and supporting mods.

[GOODBYNAAIR]

Get a MBC and run it in line with your n75 at a few psi lower than the k03 was running to be sure you don't lean out. You really need a tune to make it work 100%. When you're not in boost or low less than 5 lbs the car should run the same

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[UCFQuattroguy]

Get a MBC and run it in line with your n75 at a few psi lower than the k03 was running to be sure you don't lean out. You really need a tune to make it work 100%. When you're not in boost or low less than 5 lbs the car should run the same

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^^This^^ Injector duty cycle on a Stage 1 tune is fairly high to begin with. Adding increased airflow will only require more fuel on top of that.

My advice: Save up a few hundred extra dollars and get a proper tune. IIRC Motoza's K04 tune is around $400 FWIW.

[jaime_1]

ill think ill have to buy a ko4 file then! thank for your responses ! 👍🏼