I have read most of the threads about the LPE CAI and heard the rave reviews from most people, but still I got a very pleasant surprise. The butt dyno I installed in the driver's seat (me) registered a significant WOW! I really dont know if there is an actual HP gain (I assume so), but the improved throttle response alone is worth the investment. Oh yeah..easy install also. Now just have to decide what is next..