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How does the JB4 tune feel?

AkiraSieghart

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I'm thinking about consolidating my cars and getting a G80 3.3t Sport since they're finally coming down in price. I know I'd definitely be throwing on the ~400hp/~500tq JB4 tune on it but there's basically know reviews or videos on the internet that I can find from owners who have done it.

Does it wake the car up like it does with the G70 and Kia Stinger? How much are acceleration times improved? Ideally I'd like something somewhat fast even if it is a 4000+ lbs tank. I'd get a G70 but they're too small and the Kia Stinger would skyrocket my insurance. The G80 seems like a pretty good sweet spot if the performance can be improved.
 
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