Reading a lot of threads and hearing both sides, no hp gain VS small gain depending on your mods, single blade accufab VS a bbk. Anyone had good results, worth the $300 to $400? Current motor-wise mods are just the JLT CAI, and hopefully a full exhaust/tune in the next couple of months.
I dont know on the 99 but on the 03-04 you see a drop in torque. Its really usless till the 500+ RWHP range