Quote:
Originally Posted by canadaRS1.0
so everyone knows you dont get the full benefit of the headers without a tune, and it will impact AFR's... but no one ever seems to confirm how...
if you run a header without a tune.. does it run lean? or rich?
im cool with CEL's, and im cool with running rich... im not cool with running lean
or does no one know because people who buy headers without a tune are too cheap to dyno test? lol
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This is true, we just know its "not advised"
although, why would you want to run rich? doesn't that foul the plugs?