Hey everyone, just wondering if any of you who have the ISF steering ecu could recommend a place for me to purchase one for myself. I plan to put it on my 06 Is350.

Also does it have to be a specific Ecu or does any year ISF Ecu work? Thanks everyone, I look forward to your replies.

 

There's differences between the different years for ISF ECUs. I got the 2012 ISF ECU from my dealer locally. They were actually cheaper than if I bought it from the US (I am in Canada).

I believe the 2013 ECU was more expensive and the differences were not well known.

I say, call your local dealer and ask how much for the 2012 ECU, then try and get them to come down a bit on price. I think I paid $300.

 

Whats the advantage of the isf steering ecu in a is350?

 

A more direct drive a BMW drag your hand on the road steering. I am coming from an RX300 and I am trying to avoid doing this because the IS already drives so much better.

 

So is the dealer my only option for buying the ecu?

And would buying a 2008 isf ecu still have the same effect as a 2011+?

 

The 08 IS-F steering ECU will give you a heavier steering feel but the feedback will be lacking compared to the 11+ IS-F steering ECU. There's a lot of great information on the differences between the 08-10 and 11+ IS-F steering ECUs on this older thread:

https://www.clublexus.com/forums/is-...it-2010-f.html

It's unknown what improvements (if any) are found with the 13-14 version in order to justify the additional $200 dollars over the 11-12 version.

 

Perfect! Just the info I was looking for

Thanks for your Input

 

The cheapest place I could find the '11+ ISF steering ECU (89650-53041) was MyLParts.com, which is run by a California Lexus dealership. It came out to about $470 after the 10% off ClubLexus discount code "CL5". TLS Auto Recycling has a used one from an '08+ (89650-53041) listed on http://www.ebay.com/itm/08-09-10-LEXUS-IS-F-POWER-STEERING-COMPUTER-89650-53040-/371172366754?hash=item566b98d9a2&vxp=mtrfor $300 currently, but I would go with the '11+ model if you are going to bother with it.

That and F-Sport sway bars were the two best upgrades I have purchased for my IS350.

Also you will probably want to run in PWR mode most/all of the time after the upgrade to activate the much less intrusive sport mode traction / VSC control and stiffer steering. I found that PWR + S is more comfortable than PWR + D for normal driving because it avoids the aggressive downshifting while still retaining the sport mode benefits I mentioned.

 

How do you drive in PWR+S? Just select the highest gear as limit?

Has anyone driven the 2014 3IS and see how the steering compare? The 3IS steering definitely improved when I drove it and I wonder it's similar to the ISF steering upgrade. I'm considering doing this upgrade ...

 

Thanks, sway bars are definitely on my to do list. Also seeing as how I have an 06 is350, couldn't I just do the pedal dance to deactivate traction and vdm?

 

Can anybody help?

 

Yes, doing the pedal dance on the 06 model will disable traction control and VSC.

 

[QUOTE=Tro209;9050518]那麼經銷商是我購買ECU的唯一選擇嗎？

購買 2008 isf ecu 是否仍具有與 2011+ 相同的效果？[/QUOTE
]Hello, I am also looking for ISF late-stage steering machine computer 89650-53042. Can you tell me how to buy it, a store or a second-hand good product?

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