Rasmus
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Everything posted by Rasmus
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The ECU in these cars is a "learning ECU", it adapts to the tunings you do to the engine, as long as it isn't any major tunings. I work as a Toyota mechanic so i know what i am talking about. The VVT-i kick that originally kicks in at 4500 RPM, does now kick in at 3000 RPM. There clearly is a kick at 3000 RPM as you can hear and feel the valves opening further, this was not so before i put the DE-CAT manifold and downpibe in the car. As the engine breaths better the VVT-i can kick in sooner, it's as simple as that.
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I only installed the manifold and downpipe, the rest the ecu probably figured out by itself.
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I bought a DECAT exhaust manifold and downpipe of ebay for mine. The VVT-i witch originally kicks in at 4500 RPM, now kicks in at 3000 RPM, would say 10-15 hp more + it makes a great sound and it's easy to install. The downside is that the CO2 sensors cant be used so the engine light will be on. http://www.ebay.co.uk/itm/LEXUS-IS200-1G-FE-2-0-1998-2005-EXHAUST-DECAT-MANIFOLD-MF6547-B66-/200703032579?hash=item2ebad53d03:g:YWsAAMXQNo5TX5oF http://www.ebay.co.uk/itm/LEXUS-IS200-2-0-MK1-STAINELESS-STEEL-EXHAUST-DECAT-CAT-DOWNPIPE-DP7935-B66-/200718980598?fits=Car+Make%3ALexus&hash=item2ebbc895f6:m:mBZ05PV23dW2ieSdM99y3GA