i have an 8 lb. lower on my truck right now.

i am doing an open track event next month and i was thinking about switching to a 4 lb. lower for the event.

can i just switch this and be ok as far as the tune goes?

will it be pig rich or the maf x-fer function be way off?

 

If the MAF X-fer function is correct, you won't need to change a thing.

 

AGREED

 

thanks guys, one less thing to worry about