JokerXIX Posted October 1, 2010 Share Posted October 1, 2010 I have an 03 IS 300 with an automatic transmission. I talked with a guy and he mentioned that I could add a turbocharger and tune the chip, bringing the hp up to about 400. Is there a better way to make the car faster (both in terms of top speed and 0-60)? Quote Link to comment Share on other sites More sharing options...
1990LS400 Posted October 1, 2010 Share Posted October 1, 2010 A much better way to get 400 hp from an IS is to buy an IS F. It comes with upgraded transmission and suspension components that can actually handle that kind of power. Quote Link to comment Share on other sites More sharing options...
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