Originally posted by S14Mpower
I had a TMS/JC chip in my car. I was running the car hard all the time. My engine detonated, bad... I eventually rebuilt the whole thing with higher compression etc... Anyway, one thing that you should keep in mind is that the chip may be pretty old and i remember when we had a bit higher octane. So, in the long run, if you're in California like myself, it may be detrimental to the motor. Most of the power on the chip is in the midrange anyway. If it were me, I would toss it out. If anybody wants to buy my TMS chip $100. Just PM me , Sorry didn't mean to thread snatch.