napa 6637

[olred07]

worked on a truck today and it had the stock air filter sucked into the piping.
what do yall use to put the 6637 on these trucks?

 

[Billysgoat]

What is the 6637? Great big air filter otherwise known as the BHAF?

 

[olred07]

its what ur talking about. its a big air filter with a 4 inch whole in it.

 

[Billysgoat]

Remove the tube from breather box to turbo, grab said breather box and yank out (literally). Remove the rubber nuts from the bottom of the breather box and reinstall on studs. Replace stock intake tube on cone end of filter and turbo. Lay filter on top and enjoy.

Honestly, if it takes more than 15 minutes to install, your thinking too much LOL