Before Ordering The COOL IT!
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If the notch on the corner of the relay is facing the toward front of the car like in this photo you should order the Coolit V3 and if you are ordering a Hard Wire Coolit it is a H3

Note the notch on the corner of relay #43
If it faces toward the battery as shown in this photo then you should order a Coolit V2 and if you are ordering a Hard Wire Coolit it is a H2
C5’s have a different orientations of the relays!
Before ordering please remove your under Hood Fuse/Relay box cover and check orientation of relays.
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