I did a search and didn't really don't what i was looking for but in just installed my zzp 3.5mps when for a quick test drive( man did it make a difference can only imagine with a tune) and running autolites 606 with zero KR. I ordered a set 104s but got sent 103s. My mods are sd headers with 3" catless down pipe, stock catback, fender well cone filter and 180t stat.
From what i understand is that 103 are 2 ranges colder and typically used with more mods?
Would it hurt any to run the 103s or should i use 104s? Or would i be okay with the 606s since I'm getting no KR?
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