Currently my car is tuned for 550cc sard injectors on a nistune. Injectors were faulty so replaced with Nismo 740cc. I'd like to know if anyones had experience resizing injector CC's in nistune for the entire fuel map. The car is 100% getting retuned for the new injectors on a dyno tune. But the car requires additional work before this. Is it possible to drive on the rescaled map, albeit using light throttle and avoiding WOT, or is it a 'drive on the trailer turn the car off situation'? I don't have an AFR gauge. My current plan is resize injector -> drive to exhaust shop -> dyno retune. If not will trailer the car.