you have lots of options.... superchips or sct are the favs around here... dont expect miracles but most can feel a good improvement it the power dept.... superchips can manipulate tranny behavior a bit which helps but if you speedo is off so is your gearing and fixing that with a tuner is just a bandaid to try to cover up more things like the power loss and extra load your putting on things with bigger tires...

If you do have bigger tires like 33 or 35's your gonna get way better results replacing the gears to match the tire size to bring loads on the drivetrain back to stock levels than any tuner can do for you...

If not I would go with the sct... keep in mind the best tune for real power improvement is the 93 octane tune which of course requires higher octane gas and more $$ at the pump...

in my opinion 1.7 roller rockers are a more sound investment and improvement averaging 14hp gains on our trucks..... The most I've seen a tuner do on magnum dyno graphs is 7hp believe it or not...

 

Good info. Still has stock tires and rims. At the most, if I change, the increase in size won't be much.

I don't want a tune that will require anything but 87.

I'm intrigued by the 1.7 ratio rocker option. The engine in this truck is completely stock. Is there an affordable brand to look for that's still got some quality and value?

 

I think there is only one company that makes them specifically for dodge magnums .. Harland sharp? I'm not sure if I got that right hopefully someone else will chime in... the rest are actually made for fords and require modifications to fit and work right...they are about the same cost as a tuner...

 

So, 1.7 ratio rockers would be about the same cost as a tuner, but with more of a performance gain, and my labor to install would be slightly more involved.

I'll search for Harland Sharp and see what I get.

 

Don't waste money on the Jet chip, or any other device that claims ANY gains at all, with some two-wire scam. It just doesn't work, no matter what the company claims. You would be better off going to the electronics supply store, and picking up a resister for 15 cents, as that is ALL those chips are. (some are variable resistors... with a **** so that you can "tune" for performance, or economy....... still does nothing.)

For your truck, you can get a real programmer. That is the ONLY way to actually increase power/torque from your engine via the PCM. Superchips tuner has a selection of programs, but, they are not as good (reportedly) as the tunes from HemiFever. The SC guys can program for tire size/gear changes though...... which hemifevers' tuners won't do..... would be nice if he could add that feature. (not that it matters on my 96. )