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Hey guys, my friend has a 2009 sierra with a 5.3 RCSB Z71. I'm tring to find a cat-back exhaust but looks like GM stop using the flange setup at the Y-pipe. Has anybody run into this. Can you use the 07-08 systems by cutting off the flange and just using the new clamps style. Also the MAF is now part of the upper lid of the airbox. Any mod tricks to this also to make a 07-08 kit work? Any info would be great. Thanks
im not sure on exhaust,u may want to get a custom one done at a exhaust shop.but i do know on the MAF sensor,DO NOT try to use one from a 08',u will short out the ecm fuse and truck wont turn on,color codes are different on the plug harness,,dont ask me how i know lol,,but all i did on my 09'denali,i cut the maf sensor so it looks like the older style mafs,and did my own intake.
the 09 exhaust is supposed to be welded on or something like that. Talk to a dealership about a GMPP one made of 304 stainless. They might have one.