Exhaust and manifold not good...headers anyone!!??

[SgtVeXX]

So for the 4.7L 2007 T4R it looks like most people go with the doug thurly exhaust headers but it doesn't have CAT's on it. Would this cause me problems with Emissions testing?

I'm not looking for performance boosts but I am looking for headers that will not crack again but still pass emissions. I don't see anyone recommending any parts that have the CATs installed. Has anyone tried the Magnaflow #51217 and #51323? They have the CAT's installed already so I shouldn't have emissions testing troubles. Do they seem to have beefier steel?

 

[Scramble]

So for the 4.7L 2007 T4R it looks like most people go with the doug thurly exhaust headers but it doesn't have CAT's on it. Would this cause me problems with Emissions testing?

I'm not looking for performance boosts but I am looking for headers that will not crack again but still pass emissions. I don't see anyone recommending any parts that have the CATs installed. Has anyone tried the Magnaflow #51217 and #51323? They have the CAT's installed already so I shouldn't have emissions testing troubles. Do they seem to have beefier steel?

The DT headers bolt right up to the cat so there's no problem with emissions. You should search the 4th gen section for better answers on your specific truck.

 

[SgtVeXX]

Yea sorry about that..just noticed that somehow when I was using the search that it put me in the wrong forum.