Red. a little correction from another red here. The Abbot ERA which is the speedo compensator I use is $120 from Houston Performance.
Also, when we dynoed my car after putting 3.73's in it was off 8 mph. Once the Abbot was in there, dead on accurate.
Abbot is also good if you decide to ever go to bigger tires, since you can reset it for the changes.
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