Originally Posted by gregonfire
I ran the stage 3 with 3 revisions for about a year and a half. The tune was great, but I experienced ringland failure in cyl 4. I'm unsure if it was due to the tune, as it was discovered while being tuned at Agile. Hill (the tuner) said it was because the TP stage 3 map was too aggressive.
Did your piston fail while on the dyno or before?