I was very impressed with the gains over gutted precats at stage V w/stock turbos & injectors. I can't say if the overall power was THAT much more, but goddam does the boost come on quick now! The torque that hits when the boost comes on in 1st, 2nd & 3rd is much earlier and much more punchy.
Best ET 12.66 at 113mph & 2.0 60' (on bald street tires) Best Dyno 339 hp & 384 tq