I have a brand new set of 6.2L OBX headers that fit the 07-10 4.8-6.0 trucks. This is set of 1 3/4" headers for the 6.2L I paid $540 and would like to get this out of them since they are new and unused. I have compared these with a set of Dynatech headers and they are exactly the same. The welds on the OBX actually look nicer. I ended up with 2 sets of the 6.2L OBX headers (ordering mistake) and a buddy of mine had a new set of the 4.8-6.0 Dynatech so we did a comparrion of them before install and they are exactly the same. He ended up installing the stock exhaust off of a Denali with the stock 3.5" piping and need the larger y piece form one of my kits. We traded the y part of the y-pipe since it comes in 3 sections. This is how I have a set of 1 3/4" headers for the 4.8-6.0 motor. I have been using the other set on my Denali since the first of the year with no problems. I wanted to verify that everything was OK with the OBX before I sold the other set. As far as I know this is the only way to get the larger headers for the smaller motors with out buyn the ARH headers.

I also have a new set of front and rear weathertech mats for a 07-10 crew cab in black. I paid $188 for these. If some one would like to purchase both items I will sell them for $640 + shipping.

 

what bout just the mats?

 

have u measured the primaries and collectors? are the definitely 1 3/4?

 

Primary tubes measure 1.780" OD Collectors are 2.5" exactly the same as the Dynatech's

 

Hmmmm,so that includes the y pipe too?

 

yes, the y-pipe is included

 

More info added to first post

 

so the headeres will work on an 08 5.3

how much for the headers & y-pipe?

 

Yes they will work on your truck, $540

 

oh i guess you changed your post, because when i read it earlier it said 540 for everything.

can you post pictures?

how much are these headers rated for in terms of HP?