i bought a jet chip to improve performance in my scion tc and my car is brand new with full warranty. i need to know what chips are approved by toyota without voiding warranty. i still have time to cancel the order if i need to, but i would like to keep this chip. if i do have to go with whatever trd has, does anyone know if i have to buy it from them?
What are the Toyota approved performance chips?
- Thread starter Jeremy
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