jet performance chip help

i looked at the site and they have the chip and the modual thing, the chip is more expensive, but do they both do the same thing? jus have to see the modual? any help would be great

DUDE! that chip sucks if i where u i would send it to under pressure research and development/ or jim wolf technologys ther ecu upgrades are more expensive than jet's but ther worth every penny trust me...or ask any body els..i will help u by putting up a thread called please vote on this
TWISTED MAXIMA:bandit: