4-1 and..?
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i am riding on an stocked ES 5 (M) currently.. could anyone kindly advise me what else to change in order to make the extractor efficient?
how much bhp will i gain? -
U may wan to try 4 2 1 extractor.But pls be careful regarding the O2 sensors.....new car very sensitive....engine check light may come out if not careful...
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yah...the cel light may light up...
but 4-2-1 is better for pickup....
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Try 4-1 ...
The EG fuel mixture is too rich for Ecu tuning ...
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so 4-1 or 4-2-1 is better? heard that must also change the muffler and redirect the air intake from the bumper?
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4-1 is more on high end power...Originally posted by JeffGoh:so 4-1 or 4-2-1 is better? heard that must also change the muffler and redirect the air intake from the bumper?
but heard there is some mods u need to do to squeeze all the
power out from a 4-1 xtractor....dats y u see those race cars they normally use 4-1 xtractor...if ur car is stock i suggest 4-2-1...