Originally Posted by
specVmatt
Side note, with my 4 Siegel tunes, the car felt great for a week and then out of nowhere, my a/f gauge would peg 10.0 at WOT. When it was on S&R's dyno, their a/f showed the 9's. Everytime, never failed.
Just saying.
Didnt you end up replacing a bunch of front O2 sensors and then the engine harness after those tunes? If so, its pretty misleading to imply that it was a problem with the tune(r) when the car had significant mechanical issues.