They're essentially the same. 2016 and below can take advantage of a handheld OBDII handheld to flash the ECU to the new tune parameters. 2017+ Lexus changed some coding in the ECU and an OBDII tune isn't possible. So, you must send in your ECU to have it tuned.

The end tune is virtually identical with either method. Hopefully this clears up your confusion

 

Hi All,

Today we are ready to release our Stage 2 tune for our AWD IS/GS/RC Supercharger kits. Still working on Stage 2 for the RWD cars.

Here are the AWD results:

 

+400 WHP thats what I'm taking about

Please hurry up and finish RWD Stage 2, So I can put my hand on one

Good job guys

 

Wow Looks great! We need to see some videos of this thing in action!

 

I believe that dyno chart belongs to @mike.facciponte on instagram. He posted up a video yesterday.

 

 

 

 

here is the video. So the 0-60 time is about 4.1sec, and the 60-125mph time (equivalent to the 100-200kph benchmark used in Europe) is a bit over 9 sec, which puts this car into seriously fast territory.

Keep in mind, this particular IS350 AWD was quite heavy as it was equipped with air ride suspension and lots of other show car stuff.

Rafi

 

Beast Mode!!!!!!! It sounds amazing! Just curious what exhaust you're running?

 

That particular car is running our PPE header/ARK exhaust package... it sounds amazing!

Rafi

 

Looks like all the non-supercharged ISF guys have been put on notice!

 

The transmission still seems to be slipping in that video.
Edit: The 1-2 shift looks great.
The 3-4 seems to slip for a second
4th just as the video ends looks like is frees right up

 

So the 5800rpm limit is a thing of the past?

 

Stage 1 ( 5800 RPM ) / Stage 2 ( 7200 RPM )

AWD Stage 1and 2 are ready.

RWD only Stage 1 is ready / Stage 2 coming soon as they said