RRRacing

iTrader: (1)

There might be depending on the year/model. Please email us and we will get back to you on that.

Should be, but it would require someone with a 2IS bringing us the car for customization of the tune.

I agree, that's something we are working on, it requires a separate flash procedure of the TCU chip, and most likelly will require sending in the ECU.

Yes, we are a bit behind due to release of our RCF SC kit, but its going well and I will update soon.

Rafi

Rezno

iTrader: (1)

Could someone with a 2IS send you their ECU for the custom tune or would you actually need the car to be present?

Mesh704

I'm down to send you my ECU from Saudi but are you SURE %100 that you going to fix the TCU slip on the high RPM ?

If yes, will send it today

Thanks so much Rafi&Simon for helping the lexus community

FreshIS

Hi, just wondering if the tune is available for the 2017 IS300 AWD

sarcoptic

I finally have great news...but want to give some initial background. This process was done on a 2016 RC300 AWD:

5/18 - Ordered ECU Flash
5/22 - Received in mail, sent RR my ECU file
5/24 - Found out didn't have ECU on file, worked out a plan to send them my ECU to pull the initial file
5/31 - Sent dropped off FedEx overnight (RR covered)
6/2 - Received ECU back via FedEx overnight (RR covered)
6/28 - Received my file ECU flash

It took a little longer than expected (due to not having the file on hand) but Simon was absolutely amazing in communications via email. They always responded within 12 hours with both good and bad news. Instead of giving up once they figured out they didn't have the file on hand we worked out a process to get them my ECU. I was only without the car for 48 hours. This should tell members a lot about RR Racing. They love their customers and they love their profession.

As for the ECU flash. I have been running it for around 12 hours and now. The car feels transformed. Right off the bat you can feel the smoothness in the power curve all the way to the new 7200 rpm redline. The car feels totally restored to the true 3.5L it should be. Prior to the flash I had a Torque (Android) setup so have an idea of what the car was prior to the flash. I plan on getting that put back on this weekend and hope to provide some proof over just my butt dyno however the jump in butt dyno was significant that I know it worked.

I can't stress enough to the owners of an IS300 or RC300....this should be your first mod. Save the $$$ and skip the exhaust/intake and do this first. Finally to RR Racing you guys were awesome to work with. Thanks again for everything!

RRRacing

iTrader: (1)

We are working on it, sorry if these things take a lot of time sometimes. Our top priority now is completing the IS350 SC kit.

Yes, but unfortunately the OBD programmers do not work with the 2017MY cars, our supplier is working to solve this issue.

I am really sorry for the delay, but I am glad you are liking the tune!

Rafi

and3re

Great write up. I'd be interested in seeing the torque results too

turbo1

Hey RR, what are the gains for a 2013 GS350 AWD, they are not listed on your site.

RRRacing

iTrader: (1)

Hi... we have not actually dyno'd a GS350 AWD, however mechanically and tuning wise the IS350/GS350 are essentially the same. The gain is about 10hp, but as I say often, the biggest gain is the added 500+rpm rev limit as it noticeably increases the usable powerband. Keep in mid the 6sp AWD cars do not have a transmission slip issue above 6700 like the RWD 8sp cars.

Rafi

sarcoptic

So after the holiday weekend and tinkering with the Torque app. I can honestly say my hp and torque numbers both have increased by 20+. It it hard to get a good baseline using the Torque app but the 20+ is averages from a dead stop and rolling start. I still think the best part of this has been the smoothness of power overall going through the gears. The car pulls hard through each gear before shifting and doesn't feel like a honda when you hit that point in the powerband where vtec kicks in. I don't have a lot else to add except thanks again to Simon, Rafi, and RR Racing!

and3re

Did you use torque to 0-60 record your times?
Or any other comparisons to your stock torque results?

AMNss

Anything new about the TCU update ?

Viktimize

Well I finally had the time to deal with this 4 months later. No idea why my tuner refused to write my tune file to the ECU? But I was in contact with Simon and he squared me away almost immediately. He had me reset my tuner, re ID the ECU, send my file in to him, he sent my new tune back in a few minutes, I uploaded it to the car and the car took the tune this time around.

Test drove the car and feels great. There is one short merge lane onto a highway near my house. In stock form my IS300 can hit about 110km/h by the time I merge if I'm lucky. With the tune it could hit 130km/h no problem. And that was the first pull I did. From what I understand the car will advance its timing over time when it senses no knock.

Havent driven enough to get a feel on gas mileage. I did a few quick boots through town and then had to screw off back to camp for work.

ttsport15

is this a 17 is300?

Viktimize

nope. 2016. No difference far as I knew.