Found a great deal on the Walker OEM replacment manifold. Anyone seen one before?


http://bit.ly/1awvaDS

25,000-mile catalytic performance warranty / 5-year 50,000-mile structural integrity warranty

 

May also look at the JTR and OTT headers but I then have to gamble at yearly inspections if the tech notices the 1st cat is missing.......

 

Looks pretty good to me.

Anyone use the Magnaflow exhaust here, thinking about fitting the Magnaflow exhaust to my H3.

Then there are these :

Magnaflow 50664 Direct FIT Catalytic Converter CAT Hummer Truck H3 | eBay

 

Magnaflow is $704, I can get the Walker for half that. The OTT header is $534

 

I am over my Magna Flow cat back drone, it's unbearable at 2000 rpm. I am having a custom set of mufflers made to replace the Magna Flow ones, they guarantee me no drone.

 

I think I am just going to get the Walker OEM replacement. I don't want to fail the yearly inspection. From looking at it, it should flow better than stock with the individual tubes.

 

That model is for the 2006 3.5 only. The 2007+ 3.7 Magnaflow is $704-714! ouch!

I am not sure what the difference is between the 2006 and 2007 version. Walker's fits both 3.5 and 3.7 engines. Maybe the Magnaflow is missing the second O2 sensor port?

 

Found this one on ebay for $500



ANy thoughts on this one or the walker?

 

Is there any difference between 2006 and 2007 manifolds? I know some 2006 only have one o2 port and a shorter cat.

I am looking at the masgnaflow replacements. The 06 model is $300 cheaper. It has 2 o2 ports. Can I make it work with my 2007? Will the shorter cat cause any issues?

 

Talked with Walker tech. I am pretty sure their manifold is 2006 only. HE said it works on 2007 BASE model and not the X model. That makes no sense. Anyways, it only has one O2 sensor port.

May go for the ebay one or a GM 12607895 (2008) which replaces 12604221 (2007)