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03-07-2021
hello pontiac brothers. I plan on buying the stage 2 performance kit offered by ZZ Performance (includes 3in high flow downpipe w/ cat, smaller sc pulley, cai, tuned pcm, etc.) but havent seen any reviews on it by people who have a 04+ Grand Prix. I have an 07 Grand Prix and want to know what kind of power gains I can expect from this kit, so if anyone has done this, can you let me know how its worked for you? Thanks in advance.
03-09-2021
Do you have a way to scan your car? Gotta see what kind of kr you're seeing before and after tuning it. I'd run it with the new pcm before dropping the pulley size just my 2 cents. If no kr then throw the smaller pulley on and keep scanning.
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03-14-2021
Will a normal obd2 scanner work for scanning kr or do I need to get something different?
03-15-2021
Not exactly. You'll need an aeroforce scantool or I use the torque app with a Bluetooth adapter. I don't believe most scantools can read kr.
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