+1 on bypassing the lines, my hatch hasnt had them for years and even starting up in 35 degree weather in spring hill its fine
but honda did put them there for a reason, and there is no performance gain really, if the car is stock leave em. I did it just to clean up that area
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1996 civic dx hatchback - Honda tuning feature December 2012 "The black cloud"
1998 crv daily beater