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  1. M

    4.30s or 4.56s

    I have a 04 mach 5 speed and probably getting gears next month. I've read A LOT on the mach 1 registry forum about different opinions. Most of my driving is in the city where its 35-40 mph and i heard 4.56s are great in town and not bad on the freeway. When i do drive on the freeway i'm cruising...
  2. M

    po355 code

    hey guys i have a 2004 mach 1 and last night i did a little power brake burnout and all of a sudden it threw an engine light code. it runs fine, no misfiring, oil is good, so i took it down to autozone and it scanned that i had a po355 code..ignition coil primary circuit condition #5. so does...
  3. M

    WTB: M55 Mufflers

    i have a 2004 mach 1 and i want to buy m55 mufflers to weld in to custom piping. anyone selling them? thanks, ken

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