I have a N/A auto xfire. I've notice on threads that this upgrade gives no hp at all, but gives better throttle response. So if I drag race with another xfire auto without a sprint booster, my throttle response is better, there4 my et will be quicker and have a better time? I just need some answers.

 

No, not really. It removes the hesitation only. Think about your launch, you would be launching in the 1500 rpms range, therefore you have already removed the hesitation.... Won't help...sorry...

 

So I guess it's just a waste of money to buy. Thx man for the info

 

It is an expensive mod for just correcting the hesitation for normal driving. I hated the hesitation so much, both my cars have the sprint booster. But, it isn't necessary...