This kit ends the problems associated with the inferior 5.4 factory Plastic and Cast aluminum timing chain guides.
The Fixed passenger side ends the issue of breaking at the bolt by using stronger material and adding and additional bolt.
The Fixed driver side ends the issue of breaking in the middle by using stronger material and better design.
The Pivoting guides ends the issue of flexing which causes unwanted timing changes by using a rigid Billet design.
Factory wear strips are installed for a plug and play install - just install and go!
Lifetime warranty!
