After you take it off and see how restrictive it is, it seems like it'd give it a little more HP, but nothing noticeable. Just a cheap way to spice it up a little bit.
1998 T-Red CSVT (1492 of 6535) Born on 5/30/97 KKM 4.6L TB with custom "Throttle Optimizer" Bassani Exhaust NP-Tuning Sniper Intake Pipe Fog Light Mod with 885's Clear Corners Stereo - Oh Yeah!