Ok I dont post unless im stumped and cant find any old threads to help. I search like crazy. Anyways, Ive got a 2002 gtp and just installed an s1x with can tune from intense. The car runs and idles like a cam should, but if i get into boost or give it more than 25% throttle it stumbles. Ive checked for vacuum leaks and found none. I havent done a case relearn yet and im wondering if that is causing the issue. im not throwing p1336 or any other codes, car fires right up 2nd turn. If no case-relearn is performed, will the car run poorly? Ive read this is only sometimes the case other times not, says bill p. Any help would be great, ill look at torque app as soon as i can...