Here comes dobbs with the personal attacks again. Why am I not surprised.
I think the thing here is that David's car appears to be fucked, and a very reputable tuning company says the problem could be caused by variable X
Grimace, also a very reputable source, says no, in fact it's caused by Variable Z, and variable X can't cause this.
Leaving LIGISTX to go, K. The fuck is going on with my car. "I understand what you're saying grimace, but what do you think of this"
A couple more times than was necessary? Yeah, perhaps that's accurate. I'd be exploring all avenues multiple times if I was in his situation. Couple that with maybe not the strongest understanding of the subject, I can easily see where David is coming from. Lay off guys.