Magnaflow 12579 Center In/Out wrong for Tahoe?

[NVNJ]

I was advised by Magnaflow that the 12579 is the correct muffler for 2007-2013 Tahoes. After taking a look last night my existing muffler is center in/offset out which leads me to believe that I should have ordered the 12589 instead and that both Magnaflow tech support and website if incorrect. Can anyone tell me if the 12579 is doable ? I have an appointment to have this this installed with the SLP delete later today. If my guy is going to have to do 'additional'(more $$) work in order to make the 12579 work than I am just going to return it and order the 12589. I appreciate the advice.

Richie

 

[BlkYukon]

The muffler shop might be able to 'make it work' but I would go get the center/offset muffler instead.

I'd also suggest that you get the shorter version of the 3" center/offset, the 11229 (14329 if you want polished). I had the 12909 (same length as the 12589 but 3.5" pipes) on my Sierra and it wasn't much louder than stock.

 

[NVNJ]

Yeah I'm not messing with it. Sending it back and already ordered the 12589. A little annoyed as I was hoping to get it installed today but whatever.