plugs I honestly don't know... they aren't something I have a fond memory of after my headers  Mileage is 18ish city, 26ish pure highway. Could the o2's be confusing the motor? I checked the wires and none of them are burned. One is reeeeaaal close to a header pipe though.
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2001 Trans Am M6 WS6 Black on Black...on Black
PaceSetter LT's, TSP catted Y,Borla catback, SLP lid
!CAGS, Eibach pro-kit, Bilstein shocks, 5% tint all around
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