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    Expected gains from mods

    Can someone tell me what kind of HP Gains I could get from the following mods to stock '98 Cobra? *Headers (what is the difference between shorties and long tube headers) *X Pipe (with cats) or without the cats--Ohio just dropped their EPA check *Hi-flow exhaust *K & N Filtercharger *New...
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    Mass Air Flow Sensor

    Can someone explain the value of changing out the MAF Sensor? What is the stock MAF mm for a '98 Cobra? I see adds for C & L Performance and the various sizes MAF's, but don't know much about it. I already have a K & N Filtercharger to replace the stock filter unit--what kind of HP gains...
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    '98 Cobra Convertible Questions

    Hey All: I'm a new member. Last year, I had my first midlife crisis and bought a used '98 Cobra Convertible (laser red, all stock). After a year and a few small changes (K & N filtercharger; Drilled/Slotted Rotors/Ceramic Pads; UPR Blue Thunder Shifter; Billet Gas Cap; Billet Pedals), I...