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Posted

SO I'M THINKING ABOUT BUYING A IS300 AND WANT TO KNOW HOW MUCH HP CAN A STOCK AUTO TRANS TAKE WITHOUT SACRIFICING RELIABILITY?


Posted

i don't have one yet just wanted to know if the auto can take alot of hp

Posted

still no answer well all i found on here was moded tranies at like 400 hp and i was wondering if it was left stock until that point

Posted

Stock auto trans will hold about 350-400 hp, and a manual will hold around 275-325 hp. On the auto, if you add more than I would say 75 ish hp, then you should atleast do a valvebody upgrade.

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