It works, I actually bought it for my 98 ram, but it works on all my cars, I've been moving it back and forth. One to two mpg gain on all. Used it on my Daytona on a recent trip from PA to Myrtle Beach, yeah that was me ripping up the sand. I got a high of 28 mpg and lowest was 22.7, mostly stop and go on the outer banks. All hand calculated. Averaged 25 for the whole trip. 3 adults and a packed trunk.

 

Were you using the same grade of gas , or did you drop a grade like thire adds claim ?

 

be very careful of gas leaks with that thing. a guy over in 2nd gen ram recently burnt his truck up screwing around with that... ruined a perfectly good truck.

 

Some of the rams mine is one use a smaller fuel line, I actually have two different hose sets. If he used the larger fittings on the smaller line, kaboom.

And yes I did run 89 octane, my superchips is set for 91 on both my Daytona and Ram.

 

i wish i could use it .there rated on hp upto 400 i think .im a little beyond 400.