BMAN1113 Posted October 17, 2004 Share Posted October 17, 2004 Is anyone aware of a good power chip for the SC400? If so, what kind of gains does it produce? Quote Link to comment Share on other sites More sharing options...
laxdude3622 Posted October 18, 2004 Share Posted October 18, 2004 Go to www.lexuspros.com . You can upgrade your ecu, and gain they in a dyno test about 30hp and 50lbs tq. But is around $800-1000. Quote Link to comment Share on other sites More sharing options...
Thienn Posted October 18, 2004 Share Posted October 18, 2004 As far I could understand, the fuel economy will decrease if the ECU is modified (I think they alter the fuel management system). From reading the forum, I think a BFI and an exhaust system will gain more? Please, anyone let's know if this is the case! Thanks Quote Link to comment Share on other sites More sharing options...
bean_8044 Posted October 18, 2004 Share Posted October 18, 2004 Its not always the case, but the BFI and Exhaust will net some good gains, just in different areas. Most of the Toyotas run really rich from the factory and when i put my S-AFC in i noticed a slight increase in fuel economy since i was putting less fuel into the mix Quote Link to comment Share on other sites More sharing options...
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