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Toms cracked it in Japan...but US cars use a different ECU, so if they work on the US ECU, then maybe....the gains can be pretty nice on a car with intake and exhaust...like 30-50hp.....thats not a small amount of power....356 HP? and still basically stock!
Do yo know what his gains were? In my experience, not an expert but also not a noob, intake/exhaust gains are usually small. They help the engine rev better, but I seem them more as a pice of the "more power" puzzle than the whole thing. In NA cars though your options are somewhat limited.---Well, depending on how much you want to spend.
I guess it all comes from perspective. I had about $6K in mods to my audi, so ~$1500 was not too much. besides most of my gains came from other places.
