got my apten back today doing the install tomorrow morning. i was wondering is it alright to drive around with out a dyno tune?? i have a tune for my previous mods but my appointment for jlp isnt til oct 8th. thanks

 

you should be good.

 

yeah I drove around for about 2 weeks before I made it to the dyno.
No wide open throttle though...

 

Should be okay though I caution you not to get to agressive with your truck until put upon a dyno to be sure. My A/F ratio stayed the same after porting but some trucks go a bit leaner after the port. You will love the Apten Port I guarantee it and it will put a smile on your face from the whine and increased power!