Originally Posted by mp0510

Basically, because the ECU controls the entire powertrain's function, any non-manufacturer modification would void the warranty. However, the V6 ECU does NOT have a flash counter. This means that if you flash a new tune, then flash back to stock, they can't tell that it has had 3 flashes done (1 at factory and 2 by you).

So, if it is a stock tune when they run a diagnostic, then they can't tell anything prior. The V8's have a flash counter, so they are out of luck. The only issue for our V6 ECU would be if you left the custom tune on when you took it in for work.

Also, Trifecta recently did a new dyno test and revised their tune to be able to add 13 HP at WOT at the top end. This also smooths out the entire power curve, so you get a double improvement, even to a stock car with no modifications.



qwThis is discussed at bowtiev6.com and camaro5.com at length in the V6 tuning sections.