Well all I have to say about that ! is I bought my stang on sep.10th 1990 ,and took it off on the 12th ..all it's sappose to do is ( 1.noise reduction.. 2. Fire supression.. and in 30 years i've never seen it stop a fire in the engine bay from destroying the stang ,and i've seen many engine bay fires ..to me .all it does is collect dirt & grime ,,and shake it on your engine.. I've had 7 stangs .and none were kept.
