Hi,
Newbie here. I have 2009 C6 with few bolt ons( CAI, Long tube headers, catted xpipe, Fast 102, ported throttle body, bbe exhaust).
I was able to get MAF tuned pretty close but having issue with VVE tuning. I am getting knock upto 4 deg even at low rpms. Following the guide from tuning school. Posted question for them but at the same time trying to get help from forum friends here.
Any help will be appreciated.