Building a new 3" Exhaust With a single turbo it is no reson to run a dual exhaust with x-pipe. I am going to make a front y-pipe after the turbo to be able to use dual 3" pipes around the 4L80E. The new front y-pipe will not have any room for a flex-part, so I put one on each side of the transmission instead. I am going to use dual mufflers at the rear but for now I weldel a temporary 4" extension after the rear axle.
The old exhaust:
And the new.
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