Power & Shifting upgrades?
#1
Driver School Candidate
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Hey all, I read in a build thread that you can install an IS F series ECU in our cars (2006 GS430) and it increases power and helps the trans to shift better.
what upgrades can be done for increased power & tighter shifting?
what upgrades can be done for increased power & tighter shifting?
#2
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Pretty sure the IS-F ECU upgrade only applies to the GS460, which has the same AA80E 8-speed transmission as the IS-F. I haven't heard of much for the GS300/GS350/GS430 series. The 2006 GS430 is prone to failing capacitors in the ECU/TCU module, though, and having the ECU unit rebuilt can help if your unit is affected. One rebuilding company I have heard of (but don't have any experience with) is SIA Electronics. They often discount their service when purchased on eBay.
#4
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As CruzinGS said, there is no factory TCU upgrade for the 430, only the 460.
There is this:
https://www.clublexus.com/forums/per...g-dial-11.html
There is this:
https://www.clublexus.com/forums/per...g-dial-11.html
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