If i wasnt running a tune i'd probably be running 87. I felt no performance loss when stock, and the ecu will make timing adjustments to resolve any possible ping
Sent from my iPhone using Tapatalk
1 - 1 of 1 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
We’re the premiere Ford Focus ST forum with discussions on the 2013+ Focus ST. Join the community and see the latest news, photos, videos, classifieds, reviews, events and more!