The sets on the fist run had great ground clearance over ANY 4 tube header & more than the even the HO's did. These now have even more ground clearance & the F-body headers can be ordered with an optional 3" Oval collector that has even more ground clearance than the 2 1/2" collector did.
Also the D-ports have a redesigned flange that have way more hand room around bolts.
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