again, who want's a piggy back?
crome = free
chip kit = 65 bucks or so.
borrow a wideband and an ostrich from a friend, free.
or buy 'em, and sell 'em for nearly 90% of the cost you paid for them when you are done with them. $20 bucks? case of beer?
still well under 200 bucks.
fully tuned. not hacked, more power, safer.
piggybacks are for children.