Can you run performance chips in 525 ECUs? I bought a 525 today, just to have on hand as a spare for my 173. When I got it home, I noticed it had been opened before, so I popped it open and found a Racing Dynamics chip. Their website says that the chip is good in 173 and 380 ECUs, but I thought they were pretty much the same as a 525.
If it doesn't really work, can I swap the RD chip into the 173 and the 173 chip into the 525?
If it doesn't really work, can I swap the RD chip into the 173 and the 173 chip into the 525?
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