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08 jeep grand cherokee srt8 tuning

4.3K views 11 replies 8 participants last post by  Eagle1  
#1 ·
Hi so im a newbie an just bought a 08 jeep srt8 an need to say i love that thing an i just got a diablo trinity tuner was messing with it just dont want to mess anything up so can anyone help me with the best tune for my jeep i do have some mods like a cold air intake an a corsa cat back exhaust system i do run 91 oct an put the turner to that but it started chugging so i put it back to mpg booster tune an it stopped but i want the best tuner on it as far as idle fan throttle booster ect can anyone help a newbie understand his new srt8 please
 
#2 ·
Congrats on the jeep, I would recommend going to get a custom tune from a reputable tuner using HPTuners over the diablo. The canned tunes from diablo only adjust WOT fueling and spark for the most part, you can change idle and fan settings but that won't affect the chugging. You could always try just reuploading the 91 oct tune without touching any of the parameters and see if that fixes it.