It's a stock FPR non adjustable, seems to be a big difference at 58 psi
It's a stock FPR non adjustable, seems to be a big difference at 58 psi
'86 Silvy- '06 6.0/4L80E, K&N, 2.5 X-pipe Magnaflows, 20" Foose Wheels, Auburn Pro, 3.90 Richmond Gears, and the list is growing!!!
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