I had the Pro-Chamber on my 96GT without MIL eliminators, and never got a CE light. You might need them though. 200 miles seems like a long time for it to finally come on...dunno
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T-Bones 1997 Cobra
Wht/blk, Pro 5.0,FRPP 4.10's, aluminum driveshaft, FRPP throttle body, C&L 80mm MAF, K&N, Steeda U/D pulleys, Steeda timing adjuster, Flowmasters, s/f connectors, FRPP pro springs, BBK caster/cambers.