Mach 1 Resonator Plug

This ugly tank of a thing is there to satisfy the goverments limits on intake noise, so I have read.
I plugged mine with a rubber plug from Lowes and didnt notice any change, noise or performance.

Only reason I did it was to get rid of the unsightly mess.

But now I have the Street Smarts CAI installed. Much better.

http://forums.stangnet.com/showthread.php?t=453775

I plugged my also, no difference at all, just cleans up the engine bay a little.