I know its been talked about, and said that on a I6, it doesn't do much good, but DAMN it was hot!!! Saw a used Blue IS sold at South Bay Lexus that had the little things done, nice rims, tires, lowered about 2 inches, smoked tail lights... but best of all, a deep (like an V8 muscle car deep) yet Lexus quiet dual exhaust set up. For a second I thought it was an IS 430 on a tour or something. Any body know more about this car????