jb4 vs racechip

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    JB4 vs Racechip - 3.3tt

    Hello guys, I'm here today to give you the low down on the differences between the JB4 and Racechip piggy back tune options. TL : DR is at the bottom. Racechip: I purchased the GTS version, which is the highest available version for the 3.3tt engine. Their price point is 450$ and an additional...
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