True duals on a 6.2l

[Trenton Shelton]

I have a 2015 high country with the 6.2 and am looking at doing true duals from the cats back. What size pipe should I run? Thanks

[SeekAndDestroy]

1 hour ago, Trenton Shelton said:

What size pipe should I run?

Stock is 3.5 inch. Run it 3.5 all the way. If you want “true” duals you’ll have to ditch the y-pipe or cut it into 2 separate pipes. 

[CamGTP]

Yes but that 3.5 is for all 8 cylinders. You don't need that much pipe for only 4 cylinders, save yourself the money on smaller size piping that will more than handle the CFM the 6.2 can put out.

 

You'd really only need 2.5-2.75 size piping to support that engine, which is basically the same size as the y-pipe before the merge. To make it simple you can just get 3in pipe and call it a day.

[Darksky]

2.5 inch pipes are plenty, with low restriction mufflers, (I like Aero Exhaust in Utah #AT2525XL)  don’t forget a crossover or H pipe. If you decide to go to headers, I would also recommend a set of resonators before the tailpipes. (Again, I like the Aero Exhaust 2.5 x 10 inch version #TR252) they tame it down a bit and definitely reduce highway RPM drone. I used  a set of “one into two” slash cut, angled turn down tips- exiting behind each of the rear wheels, just in front of the bumper.

Edited December 28, 2020 by Darksky
Added part numbers