Yes, there is, it's when the OLM tells you to. However as Rand mentioned a good number of us recomend to do the first one early...I did and this is what I suggest. Others will chime in with their opinions so I say go do it now before you get a 3rd opinion saying it's a waste of $. Now, B4 it's too late.
Good piece of advice Strange.
2011 GT. Grabber Blue. Procharged. 3:73 manual.Billit LCA's. Corsa Extremes. GT 500 wheels. Racemaster DR's. T-56 Tremec. Dynotech DS . Centerforce DF. American Racing headers/high flow cats 560 rwhp.Donny Walsh tuned
2012 Pony Package. Race Red.3:31 automatic.BBK longtubes and catted X.FRPP Sport axlebacks. BBK throttle body. Dynotech DS. Brembo wheels and tires. Strut tower brace. Airraid CAI. Bama tuned.