Steele006

Hey Nick, I have stock 17's and with 4 people in the car I have spun out from a light trying to accelerate. The sub-box isn't going to make THAT much of a difference, but take it out and see what happens. The ECU upgrade I am talking about though is one you can get from SRT. I don't know if they sell just the piggy-back ECU by itself or only with the Intake upgrade. Apparently, from the research I have done, without the piggy-back ECU an intake upgrade is like throwing money out the window. Give SRT a call and see what they can do for you. SRT - Swift Racing Technologies

I've had both my LS400 and my GS400 up to 153-154mph...odd seeing as they are supposed to be governed to 149! Don't know how accurate the speedos are. The GS still had some coming on but I was approaching traffic....crazy how it only shifts into 5th gear at 140mph!!!

Yo Nick...changing your plugs would not do any justice...those Iridium plugs are good for 120k miles. I also noticed you put a Supra LSD with 3.76 gears in it. Was this before or after you had acceleration problems? With those low gears, LSD or not, you should be burning the tires through 1st and 2nd gear!!! My stock GS400 can do that depending on pavement, but it's a 1 wheel wonder :( ECU upgrade is probably whats holding your car back at this point, because the computer doesn't do a very good job at re-mapping once mods have been done....you're getting WAY more air but the factory mapping is starving it for fuel. Give us an update on how things are coming along. Steele

Anyone had this update done? I need to know if it covers all of North America including Canada now? If it doesn't I might be interested in selling my HDD from my 2000 GS400

Cheapest way is on eBay, then get a Locksmith to cut it for you and do the programming yourself as long as you have the original key. If you get Lexus to program it for ya they will most likely charge another $60! I just got myself one from a seller on ebay with 100% feedback. Lexus Key