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as I have stated over and over.
Stock exhuast is just fine for eco driving.
Someone PLEASE show me ANY documented test (hp preintout etc) showing improvement at the low end.
ALL the 'hot rodder bolt ons' (cai, k&N, flowmaster....etc......) show improvement ONLY at the top end.
Where (unless you are racing) you spend 1% of your engine's entire life.
note: if you spend more than 1% of your time at wot......your on the wrong forum.
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