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I was wondering if anyone has ever busted their e-shift tranny on a stock IS300. I wonder if playing with it often will dramatically effect its life in the long run. I mean abuse like autoX or drifting. Anything that requires alot of high rpm down shifts. All this on a near stock IS.
 

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How do you drift a stock auto IS? My impression was that drifting required enough wheel spin to carry the slide through the corner...:suspiciou
 

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You can bust it. But only if you rev it hard all the time or your boosted over 350 hp. Do a valve upgrade with a tranny cooler and youll be fine. Lexus techs at my dealership have never done a rebuild on an e-shift that has been abused. And yes you can drift an e-shift but it takes practice and an IS without a pumpkin. Have fun. :p
 
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I would say that the 5spd auto tranny is pretty strong. I know mine takes a good bit more abuse than most (can you say towing 2000+ lbs worth of jet skis?) and I've got 145k miles with not a single issue on the car, tranny or otherwise.
 
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