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  1. 1968cyclone

    Keep going thru cats

    2003 GT. I have long tube BBK headers and MAC catbacks. When I got the car, it had an O/R H-pipe which I replaced with a BBK H-pipe with cats. After a few months, the cats started to rattle from the inside - so I had them both replaced with new high flow cats. Well, after a few more...
  2. 1968cyclone

    Replacing engine coolant

    I've drained and filled engine coolant before. I have a 2003 GT. I checked Alldata on the procedure on flushing the coolant. . . . . . .The 6 cylinder, Mach 1 and Cobra were straight forward on filling the new coolant. . ... simply pour it into the overflow container. But the GT (4.6L...
  3. 1968cyclone

    Replacing my O/R H Pipe

    I recently bought a 2003 Mustang GT. It has BBK Fulll length headers, BBK H Pipe and MAC Cat Backs. (sounds great if you are wondering.) The SES light comes on occasionally - P0133/P0153. After some driving it goes away, then comes back. But away most of the time. Occasionally, the...
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