RoadRash

The IS300 has the same exhaust system as the IS200 (I have). All in all there are 3 O2 sensors. The manifold goes down in 2 pipes, in each pipe is one O2 sensor. Then it connects to 1 pipe, through the "cat" and after this there is another O2 sensor. If I wanted to tune my car with wide-band sensors (so that I don't need a dyno) and can tune it with an S-AFC or such, would I have to exchange all 3 sensors or only one of them???

Hi! I own a Lexus IS200 (same as IS300 except the engine). I have Bridgestone Blizzak 22 or such on it, 215/45 R17. Really good stuff. But also those tires slip as sh.t on fresh flown snow, because it doesn't stick on the ground and the IS is very light on the rear axle, so your wheels will spin as hell. I noticed that they stick better when the snow just lays some while and got hard in cause of other cars. But anyway..... get some Blizzak and you will feel a difference. B) N-Ice greetings, RoadRash

Seems that my account got lost due to a server error or such... Hi Xoxobabe! Watch this: IS300 Turbo Kit Maybe this can help you to choose for a solution. :D N-Ice Greetings, RoadRash