1/3 the cats
#1
1/3 the cats
why six cats i dont know but i live in NJ and they are killer on emmisions here if i go from the stock six cats to a SLP catted H/X pipe will i still pass emmisions? also i seen in another post that 87 octane is just as good as the 92 octane in the mustangs is this true? cuz thatll save me like $500 a year
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