Headers for GMT900's

[CJ Hungus]

My next mod is going to be Longtube headers and a full exhaust. I would like to get your opinions on what headers I should go with. If I wasn't poor I would go with ARH for the top notch quality but they are flippin expensive. I guess you get what you pay for but that is a lot of money. So what are some alternatives?

 

[Stumpuller6.5]

the quality of my banks headers is top notch, but i`m not so sure they make LTs, for sure they make STs for the 900s.

 

[Zembonez]

Shorty headers make exactly ZREO difference on these engines. They are wasted money unless the engine itself is really built. The OEM exhaust manifolds flow really well. Long tube headers are the only way to go but you'll have to relocate all of the O2 sensors and buy new cats (they currently all live in the Y pipe). Long tubes will create more midrange torque according to everything I have seen and read.

 

[CJ Hungus]

Yep, I would never waste my money on shorties or even mids. Longtubes or bust! I also need something that will stand up to the harsh MN winters if I do drive my truck in the winter.

 

[Zembonez]

Ceramic coatings FTW.

They will outlast your truck. We used Jet-Hot for the headers on my buddy's Opel about 8 years ago and they still look like new... and they are on a drag car!

 

[DV2000NJ]

Shorty headers make exactly ZREO difference on these engines. They are wasted money unless the engine itself is really built. The OEM exhaust manifolds flow really well. Long tube headers are the only way to go but you'll have to relocate all of the O2 sensors and buy new cats (they currently all live in the Y pipe). Long tubes will create more midrange torque according to everything I have seen and read.

When relocating the O2s, can you simply just move them further down stream, or is it more complicated than that?

 

[CJ Hungus]

Shorty headers make exactly ZREO difference on these engines. They are wasted money unless the engine itself is really built. The OEM exhaust manifolds flow really well. Long tube headers are the only way to go but you'll have to relocate all of the O2 sensors and buy new cats (they currently all live in the Y pipe). Long tubes will create more midrange torque according to everything I have seen and read.

When relocating the O2s, can you simply just move them further down stream, or is it more complicated than that?

I believe Headers only have bungs for the second set of o2s but I believe you can tune out the first set and get rid of them altogether.

 

[Zembonez]

Most people with headers go with high flow cats just beyond the collectors. The O2 sensors need to be before and after the cats for the system to work in closed loop. Other than a little lengthening of the wiring, it isn't major surgery. It's real simple to weld in premade bungs for them.

EDIT: Carl is right. Some headers have one O2 socket built in. You can locate the second behind the cats.

 

[DV2000NJ]

Most people with headers go with high flow cats just beyond the collectors. The O2 sensors need to be before and after the cats for the system to work in closed loop. Other than a little lengthening of the wiring, it isn't major surgery. It's real simple to weld in premade bungs for them.

Alright, that's what I figured.

 

[Alljackedup408]

go open heads