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I'm very interested in having it done but Jim @ True street performance thinks a non tune will be an issue. The car is a lease which I might end up buying but not 100% sure. Anybody have any input here??? Anxious to know.
Sounds like you could be the pioneer, if it has issues, you could always pull it right back off...my .02 I'm sure you would have NO problem selling it.
Sounds like you could be the pioneer, if it has issues, you could always pull it right back off...my .02 I'm sure you would have NO problem selling it.
I've been running one on my Demon and Hellcat on the stock calibration for over 5,000 miles, no cel's, documented 50rwhp on my hellcat and 65 rwhp on my Demon.
The only thing to keep in mind is the need for minimum 93 octane fuel, no more 91 octane
For anyone that is interested our 3.17 HellRaiser will run on the Factory Calibration.
You will NEED to use 93 Octane minimum and preferably a summer blend as winter blend fuel has more Butane to allow for faster starting in the cold.
There is more headroom in the Redeye and Demon Calibrations but you will see no more than 1°-2° of KR if you see any at all.
AFR's were spot on the factory setup readings.
Granted you will see greater HP numbers with a tune up by a reputable tuner.
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