Hey Cindy,
'Bout time you went with the Speed Pro system!!! You could also check with Tim Matherly of MV Performance. He's a dealer/installer and can set you up. Most of us bought our systems from him. Also, since your car is supercharged you might contact Brad Brand at Atlanta Chassis Dyno. Steve Ferguson is very proficient with tuning the system. Check with him after he gets back from Norwalk.
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SD Wheeler
M/M #30 '98 GT
MV Performance
Blade Runner Racing
"The Game"