Review on π Increase Fuel Mileage and Horsepower with Innovative Performance Chip for GMC Yukon 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, and 8.1L Engines by Marc Oner
Fake Fake Fake Best Engine Management System
This is a total fake fake ass, nothing. It's not even connected internally. I bought it because the claims that it only connects to the I/A sensor cables were too good to be true. Put it in my suburb 98 with 454 and it did absolutely nothing. Took it apart (it took some work) because they don't want anyone to know it's a scam. DON'T BE A FUCK. PASS THIS GARBAGE!
- Will NOT make permanent changes to your car's computer! This does not invalidate your factory warranty and no exhaust systems are changed. The performance chip is fully compatible with your GMC Yukon on all trim levels including 4.8L, 5.3L, 5.7L, 6.0L, 6.2L and 8 .1 liter engines.
- Negative is present
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