Originally Posted by DirtyD
That's because you didn't run a tune on it. Lol
Get it tuned for no cats and it's noticeable.
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It's been tuned for over a month now lol. And to the track. Same times but 1ish mph more trap speed. Wheels and tires were also changed, different weather too
Originally Posted by garner
First trip to the track with tune, only netted a best of 12.8@111, so basically the same time as without a tune
Non tune on the left, tune on the right
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Wheels/tires went from 275/40 sumitomo htr z3 on 19x10 AMR wheels to 235/55 yokohama yk580 on 18x8.5 factory gt/cs bullits
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