How to add 100 horses to my Lexus IS350??!?

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Marko

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It seems there are limited options for upgrading my 2006 IS350. While leaving this car naturally aspirated would be ideal, I realize that asking for 400-425 horses out of the stock 306 is asking a lot. Anyway, that is what I want, to add about 100-120 horses to my stock IS350 but there aren't any readily available kits. Or are there? You tell me.

Also, if there is indeed a supercharger or turbo available somewhere what other modifications would be necessary to ensure that the engine doesn't wear prematurely? Thanks!

Does anyone have any suggestions and could you please specify links if you recommend a product or service specifically? Thanks!
Thanks to you all who suggested the $65k IS-F as a replacement to my 45k IS350. Of course, if my wife wouldn't have killed me, then is the direction I would have gone. I am trying to beef up the existing 350, not replace it.
 
You either need a Turbo Kit or a Supercharger.
Both will add at least 100HP easily.

The Turbokit comes with everything you need to make the Turbo work without overheating your engine.

All you need to add is an Exhaust system and performance chip.
 
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