i will sell them with the motor, otherwise i will be using them. the standalone has already been tuned for them etc... which is why i was willing to include them with the sale, especially since i will need larger injectors anyhow. on pump gas im expecting ~600rwhp. with meth injection hopefully ~750rwhp. and then if e85 becomes readily available around here, it requires ALOT more fuel for the same power. 550's wont do.