ISF Steering Computer Transplant Question
07-13-15, 07:03 AM
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ISF Steering Computer Transplant Question
Question for those of you that upgraded your Steering ECUs.
I'm trying to decide between a used 89650-53040 for $300 and a new 89650-53041 for $500. I know the -41 is slightly better than the -40, but does anybody actually think its $200 better? I'd be willing to pay the $200, if the difference is noticable. I'm currently running the stock one in my '06 350 luxury.
I'm trying to decide between a used 89650-53040 for $300 and a new 89650-53041 for $500. I know the -41 is slightly better than the -40, but does anybody actually think its $200 better? I'd be willing to pay the $200, if the difference is noticable. I'm currently running the stock one in my '06 350 luxury.
07-13-15, 10:10 AM
#2
I am pretty sure the 40 is 2012 and the 41 is 2013, right? I went with the 40 because of the price and have no regrets. No idea if I would have ever noticed a difference with the newer module.
If you buy the ECU, make sure you have techstream to calibrate the unit.
If you buy the ECU, make sure you have techstream to calibrate the unit.
07-13-15, 10:16 AM
#3
40 is the 08-10 IS-F Steering ECU, 41 is the 11-12 IS-F Steering ECU, and 42 is the 13-14 IS-F Steering ECU.
Based on the significant improvement felt from swapping out the 40 model to the 41 model (and that multiple IS-F owners were happy with purchasing the 41 model), I'd say that the extra $200 to go from the 40 to 41 model is well-worth it. It's still unknown if the 42 model is worth the additional $200 premium over the previous 41 model.
Feel free to read the impressions from IS-F owners that went from the 40 to 41 model to help with your decision:
https://www.clublexus.com/forums/is-...it-2010-f.html
Based on the significant improvement felt from swapping out the 40 model to the 41 model (and that multiple IS-F owners were happy with purchasing the 41 model), I'd say that the extra $200 to go from the 40 to 41 model is well-worth it. It's still unknown if the 42 model is worth the additional $200 premium over the previous 41 model.
Feel free to read the impressions from IS-F owners that went from the 40 to 41 model to help with your decision:
https://www.clublexus.com/forums/is-...it-2010-f.html
The drive: The car feels incredible and has a very distinct feel, much nicer than the 53040 unit. I'd really like to get away from the idea of it being "heavier", because it's plenty easy to manage in low speed situations, especially in normal mode-- however, it's definitely more tactile in its feedback, resists irregularities in the road more confidently, and dials out the assist more rapidly and favorably as speed increases. In sport mode, the wheel firms up nicely and the car feels that much more assuring, as it seems to communicate what's going on with the car that much better, magnifying the above. Previously, I felt the steering was somewhat numb/disconnected at or during small degrees of steering input from center, but the 53041 ECU completely rids the car of this, and it's very confidence-inspiring. Most of all, it's just very fun to place the car where I want it, while feeling it transition.
This is how the car should have came from the factory. Period.
This is how the car should have came from the factory. Period.
07-13-15, 10:35 AM
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40 is the 08-10 IS-F Steering ECU, 41 is the 11-12 IS-F Steering ECU, and 42 is the 13-14 IS-F Steering ECU.
Based on the significant improvement felt from swapping out the 40 model to the 41 model (and that multiple IS-F owners were happy with purchasing the 41 model), I'd say that the extra $200 to go from the 40 to 41 model is well-worth it. It's still unknown if the 42 model is worth the additional $200 premium over the previous 41 model.
Feel free to read the impressions from IS-F owners that went from the 40 to 41 model to help with your decision:
Based on the significant improvement felt from swapping out the 40 model to the 41 model (and that multiple IS-F owners were happy with purchasing the 41 model), I'd say that the extra $200 to go from the 40 to 41 model is well-worth it. It's still unknown if the 42 model is worth the additional $200 premium over the previous 41 model.
Feel free to read the impressions from IS-F owners that went from the 40 to 41 model to help with your decision:
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