C4 transmissions are the bread and butter of Performance Automatic. The company is exploring ways of restoring C4s, including billet aluminum valve bodies, new pumps, and all-in-one restoration kits.
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Ryan Martin Makes History With First-Ever True 10.5 Pass In The 3's
Ryan Martin made history Wednesday, clocking the first pass in the 3-second zone on 28x10.5 tires, a 3.94 at 198 mph.
