I believe the first gear switch is jst to simply tell the ECU to run low boost in first gear so you dont shred the box. Ive just bridged the wires together to make a circuit so its on full boost through all gears, im running an F20 box and ive had no problems blowing gearboxs yet (bet now ive said that the cars in bits next week!) and i think the f23 is a stronger box. But i advise not ripping it everywhere in first as this is nt good for any box.
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