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True duals on a 6.2l

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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.

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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.


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