Originally posted by MapOfTaziFoShoââ??¢:
Wow this thread has gone bad...Y2kSVT had a dyno tune with his XCAL2. If anyone says a mail order tune is better than a dyno tune... 
The HP gains will be diff for everyone dependent on the mods already done for the car. There isn't some magic hp number with a chip. 
Couldn't agree with u more!!
Doesn't Y2K have a 3.0? 10 hp yeah and that was not on a mail order chip.
I say on average 8-9 hp on a 2.5 with an aftermarket tune after all the bolt on upgrades. Headers, maf, y-pipe, cat-back exhaust, air intake. That is tuned while on the dyno, mail order i gues a 5hp gain average.
5-6hp gain for a stock upgrade tune.
Mail order is hit or miss. Has been said a million times before.
I reject your reality and substitute my own.
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