What do you guys think?

The guy said that headers make more heat in the engine bay, will melt a sensor (he pointed to the one with the truck up on the lift-passenger side), won't give me much better performance or efficiency and that even the stainless steel ones or ones with the jethot coating will not last very long.

He seemed to contradict everything that I have read here on the forum.

 

take it somewhere else the guy is a moron.

Which headers were you trying to install? LT's or Shorties? All the exhaust shops around here wont touch the longtubes as they have to move the cats which is technically illegal to do.

 

Many folks wrap their headers with tape to help the heat stay in the exhaust, partially to keep heat out of the engine room and partially because it's better for performance. Not sure how, though. Don't know why headers would transfer more heat than the manifold. I guess there is more surface to radiate the heat.

 

longtube headers and he also said that the stock manifolds were designed to flow very well.

He did put my Aero Turbine muffler in and removed the resonators and it sounds AWESOME!

 

he is an idiot. **** on him.

He can't legally install them tho.

 

So it's illegal nationwide to move the cats done some?

 

Yep, its a federal emission law to move them.... IF you get caught...

 

we have pretty strict emissions in UT. I'll call the guy that usually does mine and ask him.

Do shorty-style headers flow that much better than stock manifolds?

 

Headers scavenge exhaust AND heat out much more efficiently than manifolds. Ceramic coated headers actually can lower engine bay temperatures by more than 50%. Your muffler guy doesn't know his a$$ from a hole in the ground...

 

Yeah but if your in there might as well get the full benefits of LT's unless you have a strict emmission state. I would rock some LT's but I cannot seem to find any LT's that are coated for a 2500.